2-in-1 Wireless Bluetooth V3.0 Single Track Headset and Watch - Black

It is not only a Bluetooth headset, but also a watch
Bluetooth version: Bluetooth V3.0
Support profile: Headset, HFP, A2DP
Talking time: Up to 1.5 - 2 hours
Standby time: Up to 200 hours
Charging time: About 2 hours
One-button control, easy to reach and hang up phone calls
With durable and adjustable rubber strap
Transmission range: up to 30ft.