iReliev ET-5555 User manual

Expandable Wireless Pods
Instruction Manual
Model # ET-5555

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INDICATIONS
Read this instruction manual before operation. Be sure to comply with all “CAUTIONS” and “WARNINGS” in this manual.
Failure to follow and implement according to the use and operating instructions can cause harm to the user or device.
The device is intended for over-the-counter use however you have medical questions we strongly encourage you to consult
with your physician regarding indications for use of this device.
What is TENS?
TENS stands for transcutaneous electrical nerve stimulation. This TENS unit is intended to deliver electrical current to electrode
pads applied to your skin to relieve pain associated with sore or aching muscles.
What is EMS?
EMS stands for electrical muscle stimulation. This electric muscle stimulator is used to stimulate healthy muscles to improve
muscle strength and performance.
Indications for Use
The iReliev® Expandable Wireless Pods is for active treatment as per intended use:
• For temporary relief of pain associated with sore and aching muscles in the lower back due to strain from exercise or normal
household and work activities. (Choose TENS programs P1 through P7)
• For temporary relief of pain associated with sore and aching muscles in the upper and lower extremities (arm and/or leg) due
to strain from exercise or normal household and work activities. (Choose TENS programs P1 through P7)
• For symptomatic relief and management of chronic, intractable pain, and relief of pain associated with arthritis.
(Choose TENS program P8)
• For use by healthy adults for the stimulation of healthy muscles to improve or facilitate muscle performance.
(Choose EMS programs P1 through P6)

TABLE OF CONTENTS
INDICATIONS......................................................................................................................................................................................................................................................................... 2
CONTRAINDICATIONS, WARNINGS, AND PRECAUTIONS.....................................................................................................................................4-6
WHAT’S INCLUDED........................................................................................................................................................................................................................................................7
POD FEATURES.................................................................................................................................................................................................................................................................. 8
ABOUT RECHARGEABLE BATTERIES................................................................................................................................................................................................. 9
SET UP: POD CHANNEL PAIRING............................................................................................................................................................................................................. 10-11
STEP BY STEP OPERATION GUIDE FOR TREATMENT............................................................................................................................................... 12
• Preparing the Skin..............................................................................................................................................................................................................................................12
• Attach Electrode Pad to Receiver Pod................................................................................................................................................................................... 12
• Attach Pod and Electrode Pad to Your Body.................................................................................................................................................................12
• Turning On and Off Receiver Pod(s)..........................................................................................................................................................................................13
• Turning On and Off Remote..................................................................................................................................................................................................................13
• Selecting TENS or EMS Mode...........................................................................................................................................................................................................14
• Selecting Therapy Program.................................................................................................................................................................................................................. 14
• Selecting Treatment Minutes............................................................................................................................................................................................................. 15
• Selecting Intensity Level............................................................................................................................................................................................................................15
COMMUNICATION BETWEEN REMOTE AND RECEIVER POD(S)................................................................................................................ 16
ELECTRODE PAD PLACEMENTS................................................................................................................................................................................................................17
TENS PROGRAMS.......................................................................................................................................................................................................................................................... 18
EMS PROGRAMS..............................................................................................................................................................................................................................................................19
CARE AND MAINTENANCE............................................................................................................................................................................................................................... 20
TROUBLESHOOTING.................................................................................................................................................................................................................................................. 21
TECHNICAL SPECIFICATIONS...................................................................................................................................................................................................................... 22-24
RADIO FREQUENCY WIRELESS INFORMATION...................................................................................................................................................................25-26
INFORMATION ABOUT ELECTROMAGNETIC COMPATIBILITY...................................................................................................................... 27-30
FCC INFORMATION...................................................................................................................................................................................................................................................... 31
WARRANTY..............................................................................................................................................................................................................................................................................32
REGISTER................................................................................................................................................................................................................................................................................... 34
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EMS CONTRAINDICATIONS
Powered muscle stimulators should not be used on people with cardiac demand pacemakers.
WARNINGS
• The long-term effects of chronic electrical stimulation are unknown.
• Stimulation should not be applied over the carotid sinus nerves, particularly in people with a known sensitivity to the carotid
sinus reex.
• Stimulation should not be applied over the neck or mouth. Severe spasm of the laryngeal and pharyngeal muscles may occur
and the contractions may be strong enough to close the airway or cause difculty in breathing.
• Stimulation should not be applied transthoracically in that the introduction of electrical current into the heart may cause
cardiac arrhythmias.
• Stimulation should not be applied transcerebrally.
• Stimulation should not be applied over swollen, infected, or inamed areas or skin eruptions, e.g., phlebitis, thrombophlebitis,
varicose veins, etc.
• Stimulation should not be applied over, or in proximity to, cancerous lesions.
PRECAUTIONS
• Safety of powered muscle stimulators for use during pregnancy has not been established.
• Caution should be used for people with suspected or diagnosed heart problems.
• Caution should be used for people with suspected or diagnosed epilepsy.
• Caution should be used in the presence of the following:
• When there is a tendency to hemorrhage following acute trauma or fracture.
• Following recent surgical procedures when muscle contraction may disrupt the healing process.
• Over the menstruating or pregnant uterus.
• Over areas of the skin which lack normal sensation.
• Some people may experience skin irritation or hypersensitivity due to electrical stimulation or electrical conductive medium.
The irritation can usually be reduced by using an alternate conductive medium, or alternate electrode placement.
• Electrode placement and stimulation settings should be based on the guidance of the prescribing practitioner.
• Powered muscle stimulators should be kept out of the reach of children.
• Powered muscle stimulators should only be used with electrodes provided for use by the manufacturer.
• Do not apply stimulation while driving, operating machinery, or during any activity in which electrical stimulation can put you
at risk of injury.
• Muscle contractions may put the user at undue risk of injury which may include use while driving, operating machinery,
or during any activity in which involuntary muscle contractions may put the user at undue risk of injury.

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ADVERSE REACTIONS
Skin irritation and burns beneath the electrodes have been reported with the use of powered muscle stimulators.
TENS CONTRAINDICATIONS
• TENS should not be used if you have a cardiac pacemaker, implanted debrillator, or other implanted metallic electronic
device. Such use could cause electric shock, burns, electrical interference, or death.
WARNINGS
• If you are in the care of a physician consult with your physician before using this device.
• If you have had medical or physical treatment for your pain, consult with your physician before using this device.
• If your pain does not improve, becomes more than mild, or continues for more than ve days, stop using the device and
consult with your physician.
• Do not apply stimulation over your neck because this could cause severe muscle spasms resulting in closure of your airway,
difculty in breathing, or adverse effects on heart rhythm or blood pressure.
• Do not apply stimulation across your chest because the introduction of electrical current into the chest may cause rhythm
disturbances to your heart, which could be lethal.
• Do not apply stimulation over open wounds or rashes, or over swollen, red, infected, or inamed areas or skin eruptions (e.g.
phlebitis, thrombophlebitis, varicose veins).
• Do not apply stimulation over, or in proximity to, cancerous lesions.
• Do not apply stimulation in the presence of electronic monitoring equipment (e.g., cardiac monitors, ECG alarms), which may
not operate properly when the electrical stimulation device is in use.
• Do not apply stimulation when in the bath or shower.
• Do not apply stimulation while sleeping.
• Do not apply stimulation while driving, operating machinery, or during any activity in which electrical stimulation can put you
at risk of injury.
• Do not use the device on children, if it has not been evaluated for pediatric use.
We also recommend the following:
• Consult with your physician before using this device, because the device may cause lethal rhythm disturbances to the heart
in susceptible individuals.
• Apply stimulation only to normal, intact, clean, healthy skin.

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PRECAUTIONS
• TENS is not effective for pain of central origin, including headache.
• TENS is not a substitute for pain medications and other pain management therapies.
• TENS devices have no curative value.
• TENS is a symptomatic treatment and, as such, suppresses the sensation of pain that would otherwise serve as a protective
mechanism.
• Effectiveness is highly dependent upon the individual using. Results may vary.
• The long-term effects of electrical stimulation are unknown.
• Since the effects of stimulation of the brain are unknown, stimulation should not be applied across your head, and electrodes
should not be placed on opposite sides of your head.
• The safety of electrical stimulation during pregnancy has not been established.
• You may experience skin irritation or hypersensitivity due to the electrical stimulation or electrical conductive medium (gel).
• If you have suspected or diagnosed heart disease, you should follow precautions recommended by your physician.
• If you have suspected or diagnosed epilepsy, you should follow precautions recommended by your physician.
We also recommend the following:
• Use caution if you have a tendency to bleed internally, such as following an injury or fracture. Consult with your physician
prior to using the device after a recent surgical procedure, because stimulation may disrupt the healing process.
• Use caution if stimulation is applied over the menstruating or pregnant uterus.
• Use caution if stimulation is applied over areas of skin that lack normal sensation.
• Keep this device out of the reach of children.
• Use this device only with the electrodes, and accessories recommended by the manufacturer to avoid adverse reactions.
Please be aware of adverse reactions and precautions below:
• You may experience skin irritation and burns beneath the stimulation electrodes applied to your skin.
• You may experience headaches and other painful sensations during or following the application of electric stimulation near
your eyes and to your head and face.
• You should stop using the device and should consult with your physician if you experience adverse reactions from the device.

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WHAT’S INCLUDED
The iReliev®Expandable Wireless Pods Includes:
1. Wireless Receiver Pods (2)
2. Protective Carry Case (1)

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POD FEATURES (CH1 WITH PAIRING CAPABILITY)
1. When power is on, blue LED light is on.
2. LED in blue blinks on with the channel in use when it receives signal from the remote.
Wireless symbol will appear next to channel on remote when successfully paired.
3. If LED in orange is ashing, battery power is low. Receiver pod(s) will turn on when charging
the battery. The orange light will remain until fully charged, then turns off.
USING THE AC ADAPTER TO CHARGE REMOTE AND RECEIVER PODS
Charging the Receiver Pod Using the AC Adapter
1. Connect the small end of the USB cable to the pod and the large end to the AC adapter.
2. Plug the adapter into any standard wall outlet.
An orange light indicates the receiver pod is now in charge mode; once fully charged the orange light will turn off.
Note: Do not charge receiver pods with electrode pads snapped on to the receiver pods as it will reduce longevity of the electrode
pads due to excessive heat from charging.

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ABOUT RECHARGEABLE BATTERIES
Please fully charge the batteries in the receiver pods before using. To prevent the risk of electric shock, make sure power cord is
unplugged from wall socket. To fully disengage the power to the unit, please disconnect the power cord from the AC outlet. Do not
remove cover (or back). The AC outlet shall be readily available and accessible.
Note: Use important precautions regarding the batteries:
• It is recommended to use a manufacturer supplied battery charger to maximize battery life.
• Do not connect the battery to metal objects placed in your pocket or backpack or other containers.
• Do not short the metal (+)(-) terminals.
• Do not dismantle or modify the battery.
• Please do not apply heavy force onto batteries. Do not throw batteries.
• Do not use sharp utensils or metal objects to scratch or puncture the battery.
• Do not place the battery in a microwave, oven, or dryer. Do not place the battery into high pressure or high temperature
environments.
• Do not mix this product with other brands or other types of batteries.
• Before charging or discharging the battery, read the manual.
• Stay away from conductive objects during battery charging and discharging.
• Keep batteries away from children.
• When the device(s) system is not in use, store in a low humidity, low temperature environment.
• In the event the battery uid comes into contact with your eyes, do not rub your eyes. Rinse with water and immediately seek
treatment.
• If you detect abnormal heat, odors, or ames coming from the battery, discontinue using the battery.
• If the battery uid leaks and comes into contact with the skin, wash with clean water.
• Do not throw batteries into a re. The battery could explode causing injury or death.
• When discarding or recycling batteries, make sure not to short circuit (+)(-) the terminals.
• Please recycle. Do not dispose of old batteries with your household waste; dispose of them safely at your recycling center or
business where the batteries were purchased.

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Number is unique to the remote.
POD CHANNEL PAIRING
Using the remote you can set the modes, programs, treatment times, and intensity levels independently on one to four
channels. (CH1, CH2, CH3, and CH4)
As an added convenience, you may use as many pods as you would like on a single channel. The
settings and intensity levels will be shared to all pods paired as that respective channel.
The two pods that come with this system are paired as CH1 but may be paired as an alternate
channel (CH2, CH3, or CH4) in the event you would like to control the pods independently of each
other.
PAIR PODS AS FOLLOWS:
STEP 1 - Turn on wireless remote and receiver pod(s) you wish to pair.
Note: All pods powered on at this time will be paired. Turn off all pod(s) you wish not to pair or you
may unintentionally pair any pod(s) within 9-10 feet.
STEP 2 - Hold the ON/+ and OFF/- buttons for 8 seconds to access the channel pairing screen.
STEP 3 - While in pairing screen, press the CH button to navigate to desired channel
(CH1, CH2, CH3, CH4). Once you have selected the channel, then press SET button.
Note: When the receiver pod(s) are paired, the button on the pod(s) will blink twice, which
means that the channel pairing was successful. The LCD on the remote will display SS.

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Pod Channel Pairing Continued
Note: If the receiver pod(s) did not pair successfully, the button on the receiver pod(s)
will not blink. The LCD on the remote will display FF.
STEP 4 - To exit pairing screen, press the OFF/- button to return to the standby screen.
Note: Your receiver pod(s) will now be programmed to the channel you selected.
Repeat the process with additional pod(s) if desired.
ADJUST YOUR THERAPY SETTINGS ON REMOTE AS FOLLOWS:
STEP 1 - Turn ON respective pod(s).
STEP 2 - Press CH on remote to navigate to the new channel select CH1, CH2, CH3, or
CH4. Respective channel will be displayed in the upper right corner of the LCD screen.
STEP 3 - Press SET on remote to adjust mode, program, and intensity level by channel
pod(s). See steps 6-9 on pages 14-15 to complete the set-up.
Note: If you have programmed your pod(s) to a different channel other than CH1, use
the adhesive labels provided to mark the pod's channel on the pod(s).

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STEP BY STEP OPERATION GUIDE FOR TREATMENT (AFTER CHARGING YOUR REMOTE AND PODS)
STEP 1 - Preparing Your Skin Before Using
Following the steps below can help prepare the skin for optimal electrical dispersion and increased stimulation sensitivity. Such
care may also help extend electrode pad life and may reduce the risk of skin irritation.
1. Determine the electrode pad placement sites for the electrode pad(s).
2. Wash the area with mild soap and water (do not use alcohol). Rinse and dry thoroughly.
3. Trim excess body hair from the area with scissors (do not shave).
4. If desired, apply iReliev®Conductive Gel or Conductive Spray to help increase conductivity. This may also reduce the chance of
skin irritation and may extend the life of the electrode pads.
5. When removing electrode pads, always remove by pulling in the direction of hair growth.
6. It may be helpful to apply iReliev®After Use Electrotherapy Lotion on electrode pad placement area when system is not in use
to help increase moisture of skin.
STEP 2 - Attach Electrode Pad to Receiver Pod
1. Place the electrode pad with the contact plugs up onto a at surface. Place the
receiver pod with the contact jacks down onto the electrode pad so that plugs and
jacks are aligned. Then press down until they are completely snapped in.
2. Do not remove the clear plastic shield from electrode pad until the unit is ready to
be placed on the body.
STEP 3 - Attach Pod and Electrode Pad to Your Body
1. Place the pod and electrode pad on your body as per the illustration on page 17.

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STEP 5 - Turning On and Off Remote
• To turn on the remote, press and hold the ON/+ button for 3 seconds. Settings will
be shown on the display with backlight for 10 seconds. The most recently selected
program will display.
• To turn off the remote manually, press and hold the OFF/- button for 3 seconds. Or it
will automatically turn off when no button is pressed for 3 minutes.
Note: Do not turn the remote on until the receiver pod(s) are properly attached to electrode pad(s).
Note: When stimulating the muscles of the arms or legs, muscle contraction may cause involuntary
limb movement which may cause injury to yourself or others. Ensure limbs are secured to prevent
movement.
STEP 4 - Turning On and Off Receiver Pod(s)
1. To turn on the receiver pod(s), press and hold the power button for 3 seconds.
2. Blue backlight of the receiver pods will blink two times when it receives the signal from the
remote.
3. Wireless symbol will appear next to "CH" on remote when successfully paired.
4. To turn off the receiver pod(s):
• When treatment minutes are remaining, reduce intensity to "0" then press and hold the
OFF/- button for 3 seconds.
• When treatment minutes have not been set, press and hold the OFF/- button or
3 seconds.
Note: Pods will only turn off automatically under the following conditions:
• Treatment minutes have expired.
• No activity or if treatment intensity has not been set for 3 minutes.
Note: To prevent unpleasant electric shocks, never remove the pod and electrode pad while it is still
turned on. However, in an emergency, you may unsnap the receiver pod from the electrode pad.

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STEP 6 - Select TENS or EMS Mode
1. Press SET button on remote; the preset therapy
mode TENS or EMS will ash on the display.
2. While ashing, use the ON/+ button to toggle
between TENS or EMS. Once desired mode is selected, then
press SET.
STEP 7 - Select Therapy Program
(TENS P1-P8 or EMS P1-P6)
1. While ashing, press the ON/+ button (to increase) or the
OFF/– button (to decrease) repeatedly until the desired therapy
program (TENS P1-P8 or EMS P1-P6) ashes on the display.
Once the desired therapy program is selected, then press SET.
Note: The device offers 8 preset TENS programs and
6 EMS programs; the programs differ with respect to
varying pulse widths and frequencies. The program you choose
determines the impulse output type. Choose the program that is
appropriate to your needs as shown on pages 18-19 or is most
comfortable to you.

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STEP 8 - Select Treatment Minutes
1. While ashing, press the ON/+ button (to increase) or the OFF/– button
(to decrease) repeatedly until the desired treatment time ashes on the
display. Once desired treatment minutes is selected, then press SET.
Note: The device offers 12 preset times: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50,
55, 60 minutes. Time will countdown on the display in 1-minute incre-
ments for the duration of your treatment.
Note: The last treatment program used is stored and appears on the
display when turned on.
STEP 9 - Select Intensity Level
1. While ashing, press the ON/+ button (to increase) or the OFF/– button
(to decrease) repeatedly until the desired intensity level ashes on the
display. Once desired intensity level is selected, then press SET.
Note: The device offers 25 intensity levels. Intensity levels are adjustable
per receiver pod channel selected. Make sure the respective receiver pod
is turned on and set if you are using advanced pairing option to create
isolated channels.
Note: While you are using, you will feel the intensity level increase or
decrease as you select the intensity level. Always start with the lowest
intensity gradually increasing until you feel a "tingling" sensation. Never
increase the intensity to a level that causes pain. Stay under point of
discomfort. You can use this as a guide to select an intensity level that is
comfortable for you.
Note: If you change therapy mode/program during a therapy session, the
intensity level will reset to “0” to avoid unpleasant and unexpected impulses; it's a safety and precautionary feature.

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Receiver Pod Features
1. When power is on, blue LED light is on.
2. LED in blue blinks on with the channel in use when it receives signal
transmitting from the remote.
3. If LED in orange is ashing, battery power is low.
Note: Receiver pod will turn on when charging the battery.
Orange light will remain until fully charged, then turns off.
COMMUNICATION BETWEEN REMOTE AND RECEIVER POD(S)
Radio Frequency Wireless technology 2.4G is used in this system. For good quality of service between the remote and receiver
pod(s), it requires that the remote be within 9.8 feet of receiver pod(s).
1. LCD symbol on the remote control and LED indicator guide on receiver pod(s).
2. The ET-5555 Expandable Wireless Pods comes with two (2) receiver pods.
3. Whenever the receiver pods are powered on, the remote control unit shall display the channel of the receiver pod(s).
4. The remote will display treatment status on the LCD sequentially and display the channel of receiver pod(s). When the receiver
pod(s) are set, you may turn off the remote.

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Go to iReliev.com/electrode-placements for more information
ELECTRODE PAD PLACEMENTS
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TENS PROGRAMS:
When using any of the 8 programs for pain relief, always start with the lowest intensity level and gradually increase the level of
intensity until you feel a “tingling” sensation. All programs are different and therefore have a different sensation. You may try all
8 programs in the beginning and choose one that feels pleasant. Never increase the intensity to a level that it hurts; always
stay under the point of discomfort. Start with short sessions of 5 to 10 minutes until your body gets used to the stimulation.
Program/Mode Benets What You Should Feel
P1
For temporary relief of pain associated with
sore and/or aching muscles in the lower
back due to strain from exercise or normal
household and/or work activities.
For temporary relief of pain associated with
sore and/or aching muscles in the upper
and lower extremities (arm and/or leg) due
to strain from exercise or normal household
and work activities.
Continuous comfortable tingling. The underlying pain
should help decrease gradually after treatment.
P2 Comfortable pulsing sensation. The underlying pain
should help decrease.
P3 Comfortable pulsing sensation. The underlying pain
should decrease.
P4 Variable comfortable tingling and pulsing sensation
(sensation should appear to come in waves). Pain
should ease and there should be relief after treatment.
P5 Variable comfortable mild tingling sensation (sensation
will appear to come in waves).
P6 Variable comfortable pulsing and pumping action
(action will appear to come in waves).
P7 Variable comfortable tingling and pumping action
(action should appear to come in waves).
P8 For symptomatic relief and management of
chronic, intractable pain and relief of pain
associated with arthritis.
Variable comfortable tingling and pulsing sensation
(sensation should appear to come in waves). Pain
should ease and there should be relief after treatment.

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EMS PROGRAMS:
For electrical muscle stimulation (EMS) any of the 6 programs may be used. The intent is to cause a muscle contraction, and then
release. All 6 programs will achieve contraction and vary by rate and duration of the contractions. Start out slowly with low intensity
levels for a warm-up (5-10 min). Increase intensity level and treatment minutes as you progress. Use the device regularly or for longer
sessions to achieve benets similar to passive "exercise."
Program/Mode What You Should Feel & Benets Suggestion
P1
Exercise Prep
P1 gently warms up the muscles prior to exercise;
it feels like a rhythmic massage. Increase intensity level until you get a strong but comfortable muscle movement; 10 min/
duration.
P2
Muscle
Recovery
P2 produces muscle twitches at a very low frequency,
feels like a tapping massage; for muscle recovery from
fatigue for relaxation and reduced stiffness.
Use after intense exercise to promote recovery
and relaxation; 30 min/duration.
P3
Active
Recovery
P3 is similar to P2, except that the muscle twitch rate
slows down during the session. It feels like a tapping
massage, but softer than P2.
Use after intense exercise to promote recovery
and relaxation; 20 min/duration.
P4
Active
Recovery
P4 activates the muscle in a short contraction/
relaxation cycle. It feels like a kneading massage,
smoother than P2/P3.
Use after intense exercise to promote recovery
and relaxation; 20 min/duration.
P5
Build
Endurance
P5 uses a low frequency pulse which may favor slow
twitch bers, for possible development of aerobic
capacity and capillary supply. It may help improve
fatigue resistance during long duration and moderate
intensity exercise.
The exercise comprises of an alternating se-
quence of work and rest phases lasting several
seconds. Increase the intensity level until you
get a strong and deep muscle contraction. Do
not exceed your comfort level; 20min/duration.
P6
Muscle
Strengthening
P6 uses a pulse frequency appropriate for fast twitch
muscle bers. It may help improve anaerobic capacity
and may help improve muscle strength.
The exercise comprises of a sequence of work
phases separated by longer relaxation phases.
Increase the stimulation intensity level until
you get a strong and deep contraction. Do not
exceed your comfort level; 20 min/duration.