Mobility Sound PTT-220-VZ User manual

Federal Communication Commission
Interference Statement
This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable
protection against harmful interference in a
residential installation. This equipment generates
uses and can radiate radio frequency energy and,
if not installed and used in accordance with the
instructions, may cause harmful interference to
radio communications. However, there is no
guarantee that interference will not occur in a
particular installation. If this equipment does
cause harmful interference to radio or television
reception, which can be determined by turning
the equipment off and on, the user is encouraged
to try to correct the interference by one of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment
and receiver.
- Connect the equipment into an outlet on a
circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV
technician for help.
FCC Caution: Any changes or modifications not
expressly approved by the party responsible for
compliance could void the user's authority to
operate this equipment.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that
may cause undesired operation.
This equipment complies with FCC RF radiation
exposure limits set forth for an uncontrolled
environment. To maintain compliance with FCC
RF exposure compliance requirements, please
avoid direct contact to the transmitting antenna
during transmitting
RF Exposure Warning!
Please keep product 20cm away from your body
or bystander during the radio operation. The
typical handheld two-way radios were certified
under mobile usage condition
(i.e. keep 20cm away from the user body) and
use of such radio closer than 20cm may exceed
the US RF exposure limit and shall be avoided.
PTT-220-VZ PUSH-TO-TALK
USER GUIDE
For use with Zello and other push-to-talk
apps on Android smart phones
This manual
applies to the
Mobility Sound
PTT--220--VZ
Push-to-Talk
transmitter
Mobility Sound PTT-220-VZ
Model No.: PTT-220-VZ
Made in Taiwan
All other product or service names are the
property of their respective owners.
© 2014 Mobility Sound Technology Ltd,,
All Rights Reserved

Controls and connection
PTT Button
This button is used to activate
the push-to-talk feature of
the Zello app
Power Button
Holding down this
button for one second
will turn the
Push-to-Talk device on
and off
Status LED
The LED ashes essages that
let the user know the current
status of the Push-to-Talk
device
Dust Cover
Used to cover the USB
port when the
PTT-220-VZ is not
being recharged
USB Charge Port
This port is used to
connect the
PTT-220-VZ to any
powered USB
connector for
recharging
Clothing Clip
The alligator-type clip can
be used to secure the
Push-to-Talk to the user’s
clothing during use. The
clip can be rotated to
allow the device to be
better positioned

STEP ONE: Charging the Push-to-Talk
The PTT-220-VZ has an internal Lithium Ion rechargeable battery pack which must be charged prior to operation and
must be recharged regularly. A fully charged battery will provide more than 12 hours of operation before needing to be
recharged. However operating time can vary depending on usage and the condition of the battery pack. Recharge the
battery regularly.
STEP ONE: Charging the Mobility Sound PTT-220-VZ
The Mobility Sound PTT-220-VZ has an internal Lithium-ion rechargeable battery pack which must be charged prior
to operation and must be recharged regularly. A fully charged battery should provide more than 12 hours of
operation before needing to be recharged.
To harge the Mobility Sound PTT-220-VZ:
Ensure the Mobility Sound PTT-220-VZ is turned off using the power button located on the side of the
device.
Plug the USB charge port on the bottom of the PTT-220-VZ into any powered USB connector. You will
first need to remove the protective rubber dust cover. (To prevent dust and moisture from damaging
your PTT-220-VZ always ensure this cover is in place when you are not charging the device).
When charging the LED on the PTT-220-VZ will show a solid blue light. When the device is done
charging the LED light will turn off.
The Mobility Sound PTT-220-VZ takes approximately 4.5 hours to charge. Actual charge time will vary
depending on several factors including the battery’s charge state condition and age.
Charging Cautions:
Use only a POWERED USB port for charging Non- powered ports (such as on a USB hub) will NOT work.
Do not use a wall charger that appears to be damaged. (Example: frayed wires melted plastic etc.)
Do not tamper with or modify the Mobility Sound PTT-220-VZ or th e charger.
Always turn OFF the power when charging the Mobility Sound PTT-220-VZ.
OPTIONAL CHARGER
Universal Wall Charger
with USB interface

Pairing With a Smart Phone
The PTT-220-VZ Push-to-Talk is designed to work with smart phones running the Android operating
system. Prior to normal operation the phone and Push-to-Talk must be paired together using the
following process:
1. Activate the pairing mode on the Push-to-Talk by holding down the PTT button while turning the
device on. Continue to hold down the PTT button until the status LED on the PTT-220-VZ shows
two blue flashes every second.
2. On your phone go to Settings > Bluetooth. Move the Bluetooth slider to turn the phone's
Bluetooth radio on.
3. Select “Search for Devices” from the phone’s Bluetooth menu. The phone will scan for nearby
Bluetooth devices and a list showing the names of nearby Bluetooth devices will be shown on the
screen.
4. Choose “PTT-220-VZ” from the list.
5. Keep the phone and Push-to-Talk near each other and wait a few seconds. The devices will pair to
each other.
Re onne ting a Previously Paired Push-to-Talk and Phone
Once the PTT-220-VZ and phone have been successfully paired together both devices will remember
that connection. They will reestablish their link whenever the Push-to-Talk and phone are both
powered on and in within range of each other as long as the Bluetooth radio is enabled in the phone.
Re-establishing this connection can take 10-60 seconds.
In the event that the phone and Push-to-Talk do not automatically reestablish their link simply press
the PTT button on the PTT-220-VZ to restore the connection.

Setting up The Zello APP
To get the Zello app on your phone and set it up to work with the PTT-220-VZ Push-to-Talk do the following:
1. Install Zello from your Zello@Work network or download the app from the Google Play store (for
Android) or the Apple App Store (for iOS).
2. Make sure that your phone's Bluetooth radio is enabled and that the Push-to-Talk are powered on and
that the Push-to-Talk and phone are connected to each other.
3. Open Zello and go to Menu > Options > Under the Hood.
4. Under "Bluetooth PTT Control " choose "PTT-220-VZ". You should see a popup indicating the device
control has been activated. If you don't see it you may need to power cycle the Push-to-talk and repeat
this step.
5. Open the Talk screen in Zello (the screen with a big round button). In the bottom-left corner of the screen
tap-hold and slide to the Bluetooth icon to activate the PTT device in Zello.

Using the Push-to-Talk with Zello
Once setup you will be able to use the Push-to-Talk with the Zello app even if Zello is running the background.
-To activate Zello’s push-to-talk feature press and hold the PTT button on the PTT-220-VZ.
-When Zello is transmitting a call audio will be picked up by the phone’s built-in microphone or by the
microphone is your wired hands-free accessory if one is plugged into the phone.
-Incoming calls received by Zello will be heard over the phone’s built-in speaker or through the earphone in your
wired hands-free accessory if you are using one.
STATUS LED MESSAGES
The meanings of the various LED messages shown by the MobilitySound PTT-220-VZ are shown on the
following table
LED INDICATION MEANING
No indication Device is powered off
Two Blue flashes every second Pairing mode
One Blue flashes every 6 seonds Bluetooth connected
Continuous solid red PTT button pressed
Repeated rapid blue flash Bluetooth link lost/Not connected
One blue flashes every second Battery low
Continuous solid blue(when connected charging) Device is in charging
No indication (when connected charging) Device charging completed

SPECIFICATION
SPECIFICATION
Operating Temperature -20 ℃to 50 ℃
Storage Temperature -40 ℃to 80 ℃
Size 65mm(H) x 30mm(W) x 17mm(D)
Weight 25 grams
Bluetooth version Fully qualified Bluetooth 2.1
Chip set CSR BC5 + 16MB external flash
Receiver sensitivity -82 dbm (typical)
Bluetooth power class Class 2
Maximum range 10 meters
Display Two-color LED
Bluetooth profile support SPP(Serial Port Profile)
DC input 5V DC
Current Draw 16mA(average), 20mA(maximum)
Battery 240mAh Lithium-ion
Charging type USB

SUPPORT AND WARRANTY
Mobility Sound Technology Ltd., warrants this product against defects in materials or workmanship for a period
of one year from the date of retail purchase. Mobility Sound will repair or replace a defective unit, at our option,
without charge for parts or labor. The limited warranty is extended only to the original purchaser. It does not
cover damage or failure caused by or attributable to Acts of God, abuse, misuse, improper or abnormal usage,
faulty installation, improper maintenance, lightning, or other incidences of excessive voltage, or any tampering
or repairs by other than a MobilitySound TechnologyLtdauthorized repair facility. It does not cover replacement
of consumable parts, transportation costs, or damage in transit.
Repair or replacement under the terms of this warranty does not extend the terms of this warranty. This warranty
can only be modified by an officer of Mobility Sound, and then only in writing. Should this product prove
defective in workmanship or material, the consumer’s sole remedies shall be such repair or replacement as
provided by the terms of this warranty. Under no circumstances shall Mobility Sound be liable for any loss or
damage, direct, consequential, or incidental, arising out of the use of or inability to use this product. Some
states do not allow limitations on how long an implied warranty lasts or the exclusions or limitations of incidental
or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you
specific legal rights.
For support or warranty service on your Mobility Sound product, contact us at [e-mail] or visit
us on the web at www.mobilitysound.com
COPYRIGHT AND TRADEMARK INFO
© 2014 Mobility Sound Technology Ltd., All rights reserved.
DISCLAIMER: The Bluetooth wireless link used by Mobility Sound products is an open standard, unsecured
technology. As such, it is not recommended for first-responder or other mission critical users.