Features:

1. Extreme comfort from adjustable head hand and earplug
2. Embedded microphone for hands-free conversation from Bluetooth-enabled mobile phones
3. Enjoy stereo music wirelessly from Bluetooth A2DP devices.
4. Pause the music & Play back automatically when receives an incoming call
5. Support remote control of play/pause, previous/next track, volume up and volume down.
6. Call transfer between the headset and Bluetooth mobile phone.
7. Automatically connect to the last connected Bluetooth device
9. With FCC, CE, ROHS approval.
Specification:

Bluetooth specification: V3.0+EDR
Bluetooth profiles supported: HSP, HFP, A2DP and AVRCP..
Operating distance: 10 meters Class 2
Rechargeable 300 mAH Li-polymer battery.
Talk time: Up to 4 hours
Music playing time: Up to 12 hours
Standby time: Up to 250 hours
Charging time: About 2.5 hours
Charge input voltage: DC 5V
Dimensions: 162×153.5× 32 mm
Weight: 103g.
What's in Box.

* Bluetooth Stereo Headset
* User Manual 
* USB Cable.
Packing:

* 50pcs/ctn
* Carton size: 65*52.5*20cm.
* Gross Weight: 6.7KG