Product colour: Black
Headset mode: Yes
Bluetooth version: 4.0
Maximum range: 1500 m
Firmware upgradeable: Yes
Automatic volume adjustment: Yes
Cables included: Charging cable
Quick start guide: Yes
Quantity per pack: 1 pc(s)
Mounting kit: Yes
Rechargeable battery: Yes
Battery run time: Up to 20 hours
Warnings: Regularly check the condition of the batteries to prevent leaks.