Function
TWS,FM,BT,Remote Control
Battery
3.7V/1800MAH Lithium battery.
Botton
Master Volume/Treble/Bass/MIC Volume/MIC Echo.
OEM
Support OEM including cabient color/microphone/logo/package design
Input
MIC/AUX/DC 9V/1.5A+DC 12V input.
Communication
AUX, Audio Line