Mini Bluetooth V4.1 Headset -

Product link : Description: Color : Red, Gray Wearing type : In-Ear Connectivity : Wireless Connecting interface : Micro USB Application : Mobile Phone Impedance : 32ohms Sensitivity : 80dB Power supply: Built-in 20mAh rechargeable battery Input power: 35mW Mini size: Just like wearing nothing, portable Built-in mic: Support hands-free calls, convenient to use Multi-point connection Supports simultaneously connection of two mobile phones Voice report number When phone call com