Details:
*Britain imported CSR 4.0 Bluetooth chip
*Strong telecontrol function
*Closed voice function
*10m stable transmission distance
*Pure stereophonic effect
*NFC Function
*High-sensitive hidden microphone
*One driving two
*Voice reminder
* Self Timer function
*Life Waterproof and Sweatproof
*Matched with Triangle waterproof set: Looks good when doing sports (Removable waterproof set)