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the internal 3.5mm microphone when the external microphone is inserted into the 
headphone. 

 

Charging the battery 

Fully charge the battery for about 2 hours before using this headphone for the first 
time. 

Plug the smaller end of USB charging cable into the micro-USB interface of the 
connector. 

Next, plug the other end of the USB charging cable into other power charging 
devices or a computer with the power on. The led indicator will keep in red during 
charging, it will go off when the headphone is fully charged. 

Note: When charging the headphone meanwhile the headphone is connected with 
Bluetooth, the headphone will be turned off automatically. 

 

Trouble shooting 

Q1. Why can’t I power on the headphone? 

A1: The headphone may have run out of the battery power. Please charge the 
battery via the included charging cable. 

Q2. Why can’t I connect the headphone to my Bluetooth device? 

A2.1.   The Bluetooth function on your device may have been turned off. Please turn 
on the Bluetooth function on your device and allow it to search for compatible 
devices. 

A2.2 The headphone may have been connected to another device. Please disconnect 
(unpaired) the headphone from the previous device before connecting them to a 
new one. 

A2.3. The headphone may not have been recognized by your device. 

Please turn off the headphone, turn them back on, and search for the headphone on 
your Bluetooth enabled device, and make the connection again. 

A2.4. The headphones may be too far away from your Bluetooth device. Please make 
sure that the headphones are close enough to your device and there is no obstacle 
between them. 

Q3. Why aren’t the headphones playing sound tracks in the Bluetooth mode? 

A3.1. The headphones may not have selected as the output device. Please adjust the 
setting on your Bluetooth enabled device to use the headphones to play the sound 
tracks. 

Summary of Contents for BNC90

Page 1: ...d using the product In particular attention shall be given to the following information 1 It needs to be stored or used in the ambient temperature 2 It shall not be placed in water or wet locations 3...

Page 2: ...2 seconds to seamlessly switch the conversation between the headphone and the mobile phone 3 When an incoming call from the third party occurs during the call tap the MFB button to hang up the curren...

Page 3: ...the same time If was previously paired to a Smartphone it is possible to be paired with a 2nd Smartphone restart switch off and switch on to enter pairing mode repeat the above pairing procedure to p...

Page 4: ...ry headphone is still expected to be in use the indicator of the secondary headphone will return to standby mode and flash green 1 once every second You will have to manually pair the headphone with a...

Page 5: ...light up in green Note After you turn ON the power you might hear a slight hissing noise This is a normal function and will cease after a few seconds When the batteries are running low the Noise Canc...

Page 6: ...Q2 Why can t I connect the headphone to my Bluetooth device A2 1 The Bluetooth function on your device may have been turned off Please turn on the Bluetooth function on your device and allow it to sea...

Page 7: ...ooth chipset CSR8670 with aptX Low Latency 3 Noise cancellation rate approximately 90 4 Bluetooth profiles HFP HSP A2DP AVRCP AAC aptX aptX Low Latency 5 Speakers 40mm neodymium 6 Audio impedance 32Oh...

Page 8: ...ill 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 en...

Page 9: ...1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation...

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