Guangzhou Liwei Electronics Co., Ltd

Solution: Please check whether your headphone is in pairing mode or reconnection mode, check whether Bluetooth search function of your mobile phone has been opened. Thus, check your mobile device’s Bluetooth menu and delete/forget the headphone, reconnect the headphone following instructions of user manual.

Solution: Please check the battery status of your headphone.

No, this headphone use a built-in non-detachable Li-Polymer battery, it cannot be removed.

For safety reason, we strongly recommend not to use over-ear headphone to avoid distraction while driving.

Please check if there is metal or other material within relatively close range may interfere Bluetooth connection, as Bluetooth is a radio technology that is sensitive to objects between the headphone and the connected device.

Please check whether the output channel of your computer is Bluetooth Audio Device and Bluetooth function of your computer support A2DP profile. And please check volume of your headphone, and computer/mobile phone.

Solution: a, Check if the source of streaming audio is on and playing. b, Check if the device supports A2DP audio streaming. c, Try other source / audio streaming app or try another track. d, Check if the Bluetooth device volume is at a high level and not muted. e, Place the device to headphones (10 meters). f, Take device and headphones away from any device that may cause interference, like other Bluetooth devices, cordless phones, microwave ovens or wireless computer network routers. g, Reduce the number of applications running on the device. The audio quality will also be improved by turning off the Wi-Fi functionality of the device.

Software settings of different APPs may be varied, which lead to some functions of the APP may not be controled by the headphone.

Make sure both ends of the USB cable are securely connected. If you use a power outlet, ensure that the power supply is connected securely and the outlet works; If you use a computer, make sure it is connected and the USB port is powered. Turn on the headset and then turn them off. Disconnect and reconnect the USB charging cable.

No, for the first time to cooperate with the customer, we provide paid samples, with a certain basis for cooperation customers, we provide a free sample service: first payment to the sample, later refund of sample fees.