BT-1 Wireless Bluetooth In-ear Headphone Sports Headset with Microphones, for Smartphone, Built-in Bluetooth Wireless Transmission, Transmission Distance: within 10m(Black)

1. Headphone design, ergonomic structure, comfortable to wear. 2. Light and durable, easy to carry, close to your ear type, suitable for professional running or other strong sports, even not easy to fall. 3. Earphone connection, using the most advanced memory wire, linear automatic admission, not easy to be deformed. 4. Low power consumption, long standby and play. 5. Bluetooth wireless transmission, more freedom, more comfortable. 6. Using advanced bluetooth technology. 7. Supporting next and previous song, volume up and down, pause and play, and microphone phone function, allow you to be able to change the calling and music easily, control music more freely and more conveniently when running.