1. Shark fin triangle ear support, fixed, soft and comfortable 2. Classic Hi-Fi, stereo surround sound 3. Professional IPX4 waterproof and sweatproof 4. No interference, no jam, Bluetooth version 4.2 5. Magnetic absorption nano, automatic adsorption 6. Dual battery life, capacity 110mAh / 3.7V 7. 300 hours standby time, 8 hours talk time, 7 hours of music playback 8. Color: Black
