User Manual
11
8 FAQ
I cannot switch on the headphones.
• Your headphones do not have enough battery 
power. Charge your headphones (see 'Charge your 
headphones' on page 5).
The headphones are not connected to my smartphone 
automatically.
• Make sure you switch on your smartphone before you 
switch on the headphones. Make sure the Bluetooth
®
function of your smartphone is switched on.
The headphones keep on disconnecting.
• Your headphones do not have enough battery 
power. Charge your headphones (see 'Charge your 
headphones' on page 5).
• Make sure the headphones and Bluetooth
®
 device are 
within the operation range. Remove any unnecessary 
Bluetooth
®
 devices.
• Remove the headphones from the pairing list and pair 
them with your device again.
The headphones do not pair with my device.
• Make sure you follow the steps described in this user 
manual.
• Make sure the headphones have entered the pairing 
mode. Press and hold   until the blue and white LED 
flashes alternately.
I cannot find the headphones model name on the pairing list 
of my Bluetooth
®
 device to make a first time connection.
• Follow the steps described in this user manual and 
pair the headphones with your device manually again 
(see 'Pair the headphones with your smartphone or 
Bluetooth
®
 devices' on page 5).
Why does the music play on my smartphone speaker, but 
not through my headphones?
• Make sure you have already selected on your 
smartphone to listen to music through the 
headphones. For information, consult the user manual 
of your smartphone.
I cannot hear the other side’s speaking.
• Adjust the volume of your headphones.
• Adjust the volume of your connected Bluetooth
®
device.
The other side cannot hear my voice.
• Make sure you speak close to the microphone.
• Make sure the microphone is not muted.
The audio quality is poor and crackling noise can be heard.
• Make sure the Bluetooth
®
 device is within the operation 
range. Reduce the distance or remove obstacles 
between your headphones and Bluetooth
®
 device.
The audio quality is poor when streaming from the 
smartphone or audio streaming does not work at all.
• Make sure your smartphone supports both HFP 
- Hands-free profile and A2DP - Advanced audio 
distribution profile (Bluetooth
®
 stereo supported).
I cannot control music functions on my Bluetooth
®
 device.
• Make sure the Bluetooth
®
 audio source supports 
AVRCP - Audio video remote control profile.
Where do I take my headphones to dispose of them?
• To find the closest electronics recycling solution to you, 
please visit www.tcl.com
For further support, visit www.tcl.com










