Origin: Mainland China
1 Q: Does the device not power on?
A: If the device has not been in use for a long time, or if the battery i
2 Q: Can the device power on, but canu0027t be used and there is no sound?
3 Q: What makes a strange noise when using it?
4 Q: Does the device not charge properly?
5 Q: Can multiple receivers receive signals from one transmitter at the sam