Sennheiser CX 7.00BT User manual

CX 7.00BT
In-Ear Wireless
Instruction Manual

CX 7.00BT | 1
Contents
Contents
Important safety instructions ...................................................................................2
The CX 7.00BT In-Ear Wireless headphones.............................................................4
Package includes..........................................................................................................6
Product overview.........................................................................................................7
Overview of the headphones .................................................................................... 7
Overview of pictograms ............................................................................................. 8
Overview of the LED indications.............................................................................10
Overview of buttons .................................................................................................11
Getting started ......................................................................................................... 12
Charging basics..........................................................................................................12
Pairing the headphones ...........................................................................................14
Using the headphones ............................................................................................. 18
Switching the headphones on ................................................................................18
Switching the headphones off................................................................................18
Adjusting the volume...............................................................................................19
Checking the battery life of the headphones ......................................................20
Playing music ............................................................................................................ 21
Playing music wirelessly ..........................................................................................21
Playing music using the USB cable ........................................................................22
Controlling music playback......................................................................................23
Making calls on the headphones ........................................................................... 24
Voice control function...............................................................................................26
Care and maintenance ............................................................................................. 27
Changing ear adapters .............................................................................................27
Storage and handling ...............................................................................................28
Information about the rechargeable battery ......................................................29
Troubleshooting........................................................................................................ 30
Clearing previously paired devices.........................................................................31
Specifications ............................................................................................................ 32
Trademarks................................................................................................................ 33

2 | CX 7.00BT
Important safety instructions
Important safety instructions
XRead this instruction manual carefully and completely before using the
product.
XAlways include this instruction manual when passing the product on to third
parties.
XDo not use an obviously defective product.
XOnly use the product in environments where wireless Bluetooth® transmission
is permitted.
Preventing damage to health and accidents
XProtect your hearing from high volume levels. Permanent hearing
damage may occur when headphones are used at high volume levels
for long periods of time. Sennheiser headphones sound exceptionally good at
low and medium volume levels.
XDo not insert the ear canal phones too deep into your ears and never insert
them without ear adapters. Always extract the ear canal phones from your
ears very slowly and carefully.
XKeep the headphones at least 10 cm/3.94” from cardiac pacemakers or
implanted defibrillators. The headphones contain magnets that generate a
magnetic field which could cause interference with cardiac pacemakers and
implanted defibrillators.
XKeep the product, accessories and packaging parts out of reach of children
and pets to prevent accidents and choking hazards.
XDo not use the product in situations which require special attention (e.g. in
traffic or when performing skilled jobs).
Preventing damage to the product and malfunctions
XAlways keep the product dry and do not expose it to extreme temperatures
to avoid corrosion or deformation. The normal operating temperature is from
10 to 40°C/50 to 104°F.
XOnly use attachments/accessories/spare parts supplied or recommended by
Sennheiser.
XClean the product only with a soft, dry cloth.
XUse the product with care and store it in a clean, dust-free environment.

CX 7.00BT | 3
Important safety instructions
Intended use/Liability
These In-Ear wireless headphones are designed for use with mobile devices
(e.g. mobile music players, mobile phones, tablets) that support wireless
communication via Bluetooth. Compatible Bluetooth devices include those
that support the following profiles: Hands Free Profile (HFP), Advanced Audio
Distribution Profile (A2DP), and Audio/Video Remote Control Profile (AVRCP).
It is considered improper use when this product is used for any application not
named in the associated instruction manuals and product guides.
Sennheiser does not accept liability for damage arising from abuse or misuse of
this product and its attachments/accessories.
Safety instructions for the Lithium-Polymer battery pack
WARNING
In extreme cases, abuse or misuse of the Lithium-Polymer battery pack can lead
to:
• explosion
• fire development
• heat generation or
• smoke or gas development
Dispose of products with built-in rechargeable batteries at special
collection points or return them to your specialist dealer.
Only use rechargeable batteries and chargers recommended by
Sennheiser.
Charge products with built-in rechargeable batteries at ambient
temperatures between 10 and 40°C/50 and 104°F.
Switch battery-powered products off after use.
When not using the product for extended periods of time, charge its
built-in rechargeable batteries regularly (about every 3 months).
Do not heat above 70°C/158°F, e.g. do not expose to sunlight or
throw into fire.
Do not charge a product with built-in rechargeable batteries if the
product is obviously defective.

4 | CX 7.00BT
The CX 7.00BT In-Ear Wireless headphones
The CX 7.00BT In-Ear Wireless headphones
The CX 7.00BT In-Ear Wireless headphones deliver detailed sound and enhanced
bass with Bluetooth 4.1 and Qualcomm® aptX™ for true Hi-Fi sound. A
lightweight ergonomic design and ten-hour battery lets you enjoy a great all
day listening experience.
Features
• High quality headphones tuned for clarity and superior bass
• Ergonomic and robust around-the-neck design for all day listening experience
• Supports Qualcomm® aptX™ for true Hi-Fi sound
• 10 hour battery life with 1.5 hour charging
• Supports USB audio
• Immediate pairing to smart devices using NFC

CX 7.00BT | 5
The CX 7.00BT In-Ear Wireless headphones
Bluetooth
The CX 7.00BT In-Ear Wireless headphones comply with the Bluetooth 4.1
standard and are compatible with all Bluetooth 1.1, 1.2, 2.0, 2.1, 3.0, 4.0 and
devices with the following profiles: Hands Free Profile (HFP), Advanced Audio
Distribution Profile (A2DP), and Audio/Video Remote Control Profile (AVRCP).
NFC
Near Field Communication (NFC) is a short-range wireless technology that en-
ables connection and communication between NFC-capable electronic devices
by placing them near one another or with a single touch.
aptXTM
With aptXTM audio coding, you can be assured of crisp, pure and full stereo
sound. It allows you to not only hear, but experience and feel the audio as it was
intended. Utilizing aptXTM, Bluetooth technology can now offer wireless audio
quality that is indistinguishable from the highest quality wired connection.

6 | CX 7.00BT
Package includes
Package includes
Neckband headphones
Carry case
XS S L Ear adapters
USB cable with micro-USB connector
Quick guide Quick guide
Safety guide Safety guide
A list of accessories can be found at www.sennheiser.com. For information
on suppliers, contact your local Sennheiser partner: www.sennheiser.com >
“Sales Partner“.

CX 7.00BT | 7
Product overview
Product overview
Overview of the headphones
1 Neckband 7 Play/pause button
2 Ear adapters 8 Volume/track - button
3 NFC panel 9 Power button
4 Bluetooth antenna 0 Microphone
5 LED A Micro-USB input
6 Volume/track + button B Micro-USB cover
1
3
2
0
9
46 7
5
8

8 | CX 7.00BT
Product overview
Overview of pictograms
Pictograms for pressing a button
Pictogram Meaning
1x
Press and immediately release the button
2x
Press the button twice
5s
Press the button and hold for 5 seconds
Pictograms for alerts and tones
Pictogram Meaning
You hear beeps in the headphones

CX 7.00BT | 9
Product overview
Pictograms for the LED
Pictogram Meaning
The LED lights up
The intervals signify flashing
The LED lights up/flashes continuously
3s The time the LED lights up before blinking
Examples of pictograms that may be used in this manual:
Pictogram Meaning
5m
The LED flashes continuously
3s The LED lights up for 3 seconds, then off, and repeat
2s 2s The LED lights up, then off for 2 seconds, and repeat
The LED lights up continuously
1s The LED continuously flashes blue and red per second
The pictogram “i“
Notes marked with the pictogram “i” provide useful information on the use
of the headphones.

10 | CX 7.00BT
Product overview
Overview of the LED indications
LED indications during operation
LED Meaning
The headphones switch on
Pairing/connecting with a device is successful
The headphones switch off
Pairing with a device is unsuccessful
1s The headphones are in pairing mode
The device is/devices are successfully cleared
from the headphones
2s 2s
The headphones are in idle mode (e.g.
headphones are paired but not connected to
the device)
LED indications during calls
LED Meaning
2.5s 2.5s 2.5s Incoming call
Incoming call with an almost empty battery

CX 7.00BT | 11
Product overview
Overview of buttons
Power button
Press Function Page
2s
Switches the headphones on and off 18
1x
Checks the battery life 20
Play/pause button
Press Function Page
1x
Accepts/ends a call
Accepts an incoming call and ends the active call
Plays/pauses a track
24
24
23
1s
Rejects a call
Activates the voice control
Transfers a call between the headphones and the
smartphone
24
26
25
2x
Accepts an incoming call and holds the active call/
Toggles between 2 calls
24
Volume/track + button
Press Function Page
1x
Increases the volume 19
2s
Plays the next track 23
Volume/track - button
Press Function Page
1x
Decreases the volume 19
2s
Plays the previous track 23

12 | CX 7.00BT
Getting started
Getting started
Charging basics
A complete charging cycle takes about 1.5 hours. Before using the headphones
for the first time, charge their rechargeable battery for a complete charging
cycle without interruption.
When the battery is almost empty or when the headphones are being charged,
the LED lights up or flashes as indicated in the following table and a voice prompt
announces the charge condition of the battery. When the battery charge drops
to a low level, a voice prompt asks you to recharge the headphones.
It is recommended to charge the headphones using only the supplied USB cable.
If you are charging using an external USB-power adapter, it is recommended to
use an adapter with an output rating of 500 mA or higher.
LED Meaning Voice prompt
Battery is almost empty
(less than 2 % charged) “recharge headset“
Battery is less than 10% charged “below 1 hour play time”
Battery is less than 20% charged “between 1 and 2 hours
play time”
Battery is less than 50% charged “between 2 and 5 hours
play time”
Battery is more than 50% charged “between 5 and 10 hours
play time“
1.5 h

CX 7.00BT | 13
Getting started
Charging the headphones
1. Open the micro-USB cover to access the micro-USB input.
2. Connect the micro-USB plug of the charging cable to the micro-USB input of
the headphones.
3. Connect the USB plug to the USB port of your computer. If you are using an
external power adapter, connect the USB plug to the power adapter or to the
USB car charger adapter, and connect to the power source.
The LED flashes/lights up depending on the battery life of the headphones.
The headphones utilize an intelligent battery charging technology that
prevents overcharging.
1.5 h
CHARGING TIME
Accessories not included.
*
*
*
*
Charging time may take longer at ambient temperatures below 15°C/
59°F.
For more information on playing music using the USB cable,
see page 22.

14 | CX 7.00BT
Getting started
Pairing the headphones
CAUTION
Danger of malfunction!
The transmitted radio waves of mobile phones can impair the
operation of sensitive and unprotected devices.
XOnly make calls with the headphones in locations where Bluetooth
wireless transmission is permitted.
The CX 7.00BT In-Ear Wireless headphones comply with the Bluetooth 4.1
standard. In order that data can be transmitted wirelessly using Bluetooth
technology, you have to pair your headphones with compatible Bluetooth
devices that support the following profiles:
XHands Free Profile (HFP)
XAudio/Video Remote Control Profile (AVRCP)
XAdvanced Audio Distribution Profile (A2DP)
When you switch the headphones on for the first time, they automatically go to
pairing mode. If the headphones have already been paired with a few devices,
they automatically try to connect to the two most-recently connected Blue-
tooth devices. The headphones can save the connection profiles of up to eight
Bluetooth devices or smartphones.
If you pair the headphones with a ninth Bluetooth device, the saved connection
profile of the least used Bluetooth device will be overwritten. If you want to
re-establish a connection with the overwritten Bluetooth device, you have to
pair the headphones again.
You can easily pair and connect your wireless headphones with your smart-
phone if the device supports the Near Field Communication (NFC) technology.
paired
paired +
connected
To pair and connect the headphones to a PC or Mac, it is recommended to
use a Sennheiser Bluetooth USB dongle.

CX 7.00BT | 15
Getting started
Pairing the headphones with a Bluetooth device using NFC
The following sections describe, using a smartphone as an example, how to pair
your CX 7.00BT In-Ear Wireless headphones with a Bluetooth device using NFC.
If the instructions provided do not work on your device, proceed as described in
the instruction manual of the device.
You can pair the headphones with other devices using NFC regardless of the
headphones’ power state (on or off).
1. Activate NFC on your smartphone.
2. Scan the smartphone to the NFC panel on the neckband, see NFC panel
location on page 7.
You hear the voice prompt “power on” and a beep sound. The LED flashes
blue and red.
At this point, if you decide to cancel pairing, press the play/pause button
once. The headphones go to idle mode.
3. Click “Yes” if the pairing confirmation dialog appears on the screen of your
smartphone (this step may vary depending on your smartphone).
If pairing was successful, you hear the voice prompt “connected”. The LED
flashes blue 3 times.
Menu
NFC on
NFC off
1s 1s
Connect to Bluetooth device?
Yes
No
› connected ‹
1 2
3
scan

16 | CX 7.00BT
Getting started
Pairing the headphones with a Bluetooth device
Ensure that the headphones are within the 20 cm range of your smartphone
when performing this procedure.
1. Switch the headphones on (see page 18).
– If you pair the headphones to the device for the first time, they automatically
go to pairing mode.
– If the headphones don’t automatically go to pairing mode, switch the
headphones off and press the power button again for 4 seconds or until
you hear the voice prompt “power on” and a beep sound.
The LED flashes blue and red. The headphones are in pairing mode.
At this point, if you decide to cancel pairing, press the play/pause button
once. The headphones go to idle mode.
2. Activate Bluetooth on your smartphone.
3. On your smartphone, start a search for Bluetooth devices.
All active Bluetooth devices in the proximity of your smartphone are
displayed.
4. From the list of found Bluetooth devices, select “CX 7.00BT”.If necessary,
enter the default PIN code “0000”.
If pairing was successful, you hear the voice prompt “connected”. The LED
flashes blue 3 times.
1s 1s
20 cm
› power on ‹
Menu
Add Device
Menu
Bluetooth on
Bluetooth off
CX 7.00BT
CX 7.00BT
Keyword: 0000
› connected ‹
1
2 3
4
2s
If no connection is established within 5 minutes, pairing mode is terminated
and the headphones switch off. If necessary, repeat the pairing procedure.

CX 7.00BT | 17
Getting started
Disconnecting the headphones from your Bluetooth device
XDeactivate Bluetooth on your smartphone.
The headphones are disconnected from the smartphone. The headphones
then search for other paired devices. If no device is found, you hear the voice
prompt “lost connection”. The headphones go to idle mode.
› lost connection ‹
Menu
Bluetooth on
Bluetooth off

18 | CX 7.00BT
Using the headphones
Using the headphones
Switching the headphones on
WARNING
Danger due to high volume levels!
Listening at high volume levels for long periods of time can lead to
permanent hearing defects.
XBefore putting the headphones on, set the volume to a low level.
XDo not continuously expose yourself to high volume levels.
XPress the power button for 2 seconds.
You hear the voice prompts “power on” and “connected”. The LED flashes
blue 3 times.
Switching the headphones off
XPress the power button for 2 seconds.
You hear the voice prompt “power off”. The LED flashes red 3 times.
2s
2s

CX 7.00BT | 19
Using the headphones
Adjusting the volume
WARNING
Danger due to high volume levels!
Listening at high volume levels for long periods of time can lead to
permanent hearing defects. Switching between audio sources may
cause enormous volume jumps that can permanently damage your
hearing.
XBefore putting the headphones on and before switching between
audio sources, adjust the volume to a low level.
XDo not continuously expose yourself to high volume levels.
You can adjust the volume for music and phone calls. These functions are
available when the headphones and the device are connected using Bluetooth
or USB cable.
XPress the volume/track + or - button once to increase or decrease the volume.
When the minimum or maximum volume is reached, you hear an alert.
Press Function
1x
Increases the volume
1x
Decreases the volume