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12

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

Summary of Contents for ELIT400NC

Page 1: ...Hi Let s get started ELIT400NC User manual...

Page 2: ...devices 4 Use your headphones 6 Using the supplied headphone cable Power your headphones on or off Connect your headphones to your smartphone or Bluetooth device ANC control Music control Voice assis...

Page 3: ...ions The integrated battery shall not be exposed to excessive heat such as sunshine fire or the like Caution Danger of explosion if battery is incorrectly replaced Replace only with the same or equiva...

Page 4: ...started What s in the box TCL wireless active noise cancelling over ear headphones with mic ELIT400NC USB cable for charging Audio cable QSG Safety sheet Quick start guide Safety sheet Overview of th...

Page 5: ...uct damage Warning Only charge with certified USB adaptor DC 5V Pair the headphones with your smartphone or Bluetooth devices For the first time use you have to pair the headphones with your smartphon...

Page 6: ...pause and other operations on the playback device The NC slider can be used to turn on ANC even when the headset is powered off and no matter the audio cable is connected or not Power your headphones...

Page 7: ...the headphone will not turn off automatically in any states You are recommended to disable the ANC function when it is not needed to save the battery life Music control Music control Operation Play or...

Page 8: ...ge After powering on the headphones you will hear voice notifications of different headphone status such as when the battery level is low or when the headphones are connected to the smartphone or Blue...

Page 9: ...ery 2 22Wh Disposal of your old product and battery Environmental protection and sustainability We have omitted all unnecessary packaging and make sure it is eco friendly and sustainable Your product...

Page 10: ...ing 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 re...

Page 11: ...rk of Apple Inc registered in the U S and other countries Google Google and the Google Logo are registered trademarks of Google Inc and Google Assistant is a trademark of Google Inc TCL TCL is a regis...

Page 12: ...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 se...

Page 13: ...uestions For more details or for help visit www tcl com 2019 TCL Entertainment Solutions Limited All rights reserved This product has been manufactured by and is sold under the responsibility of TCL E...

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