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Enable the Car mode and connect the BTR13 to an on-board USB port. When the vehicle engine starts, the BTR13 will power on automatically, and power off whe...

1. Enable the PAIR2D option in the menu of BTR13 first.  2. After BTR13 is successfully connected to mobile phone 1, press and hold the multi-function butt...

1. Why is the BTR13's volume adjustment is out of sync with the mobile phone's？ We have deliberately designed the BTR13's volume adjustment to ...

BTR13 only supports calls in BT mode and supports the line-controlled microphone function.   [Microphone] When BTR13 is paired with an Android phone, it ...

Battery BTR13 has a built-in high-performance lithium polymer battery with a capacity of 460mAh.   Battery life Battery life of about 8 hours in AAC enc...