1. Bluetooth module is integrated in the 8 Pin plug which can provide fast identification speed 2. Once paired with Bluetooth, it can automatically connect next time, signal stability, support phone calls and provide high fidelity sound 3. Support short press, increase the volume, short press, decrease the volume 4. Support pause/play/answer/hang up, fast press 2 times next, long press 2s, reject a call 5. Earphone cable length: about 1.1m 6. Small size, easy to carry
