Feature:
CRS Bluetooth V4.1 chip, lizing transmitting chip, main unit is connected with auxiliary unit, that's how we remove wires while synchronize sound of two mono(units)  and realize TWS stereo of AirPods to secure you sweet sounding.
Wide compatible with the various devices with bluetooth function for android mobile phone and for iphone.
Keep Gemini in the integrated box to charge automatically
Lighter, Smaller and More Invisible
Multi-points connection. Two cellphones paired at same time

Package include:
2*Bluetooth headset
1*Charging box
4*Ear plug
1*Charging line
1*User manual