Sport Type Bluetooth Earphone

Model: JC-218B

Features

1.Adjustable hook design for easy storage
2.Rubber painting 
3.Wired version ranked No.1 sale earbuds in 2016

Specification

Bluetooth Version:  BT 4.1 
Bluetooth chipset: CSR 8635 
Transmission range: 10M 
Built-in rechargeable battery 
Battery capacity: 55mAh
Playing time: 4.5 hrs
Charging time: 1-2 hrs
Standby time: 50 hrs
Driver:10mm
Impedance:32Ω
Frequency response: 20-20KHz
Sensitivity:98dB±3dB
Three sizes of eartips for a perfect fit