Wireless Bluetooth Headset Transparent Mini BinOverview: 1. 9D immersive stereo sound Stereo Surround Sound upgrade Bluetooth 5. 3 Connect when you turn on the phone. 2. Ergonomics fitted to the curve of the ear precisely considered comfort. 3. Center of gravity optimization stable wear. 4. Lightweight and compact portable. Product information : Transmission range: 10m Bluetooth protocol: 5. 3 Usage: ear plug type Monobinaural: Bilateral Stereo Type: neutral transparent warehouse black, neutral