1. Wireless Bluetooth earphone.
2. Bluetooth V4.1 technology: More rapid transmission.
3. Built-in Microphone: Supports hands-free calls.
4. Wire Control: Supports volume adjustment song switch answer calls.
5. Support caller number voice broadcast.
6. Noise reduction sound effects: Provides the clear talking and undisturbed music.
7. Support automatically shut down when has not signal.
8. Built-in 120mAh Lithium battery low power dissipation long working time.
9. Sweatproof design.
10. Ergonomic earbud design comfortable to wear.
11. Ear hook hanging design wear more solid.