* Small size, easy to carry

* Bluetooth module is integrated into the 8 Pin plug which can provide fast identification speed 

* Once paired with Bluetooth, it can automatically connect next time, perfect signal stability, support phone calls and provide high fidelity sound 

* Support short press, increase the volume, short press, decrease the volume 

* Support pause/play/answer/hang up, fast press 2 times next, long press 2s, reject a call.