Features :

The hands-free including bluetooth dongle and V4.0 bluetooth earpiece. V4.0 is a earpiece which built in PTT microphone that can be placed over either ear. The earpiece provides the best audio quality when paired with HB-6B connector two way radios and is comfortable and flexible enough for all-day wear. Do not hesitate to Work with it to get free of your hands in work.

Specification :

Bluetooth Version: V4.0 Class 2 Frequency Range: 2.4G Working Mode: HFP1.5 A2DP AVRCP Charger time: 1-2.5H Talk Range: <10Meters Work Time: 5-8Hours Standby Time: <100Hours Connector: K1 Standard Weight: 25g