Working Voltage: 10V~24V
Audio Input/Output: 3.5mm audio interface
USB Charging Port: 5V/2.1A
1.Please do not violently rotate the head part when using it (the rotation angle shall not exceed 90°).
2.Tune it to an unused frequency.
3.The max input & output current of the transmitter varies with charged devices, due to charged devices are able to limit output current automatically.