Specifications:
1) Size: 4mm x 19mm x 1mm
2) Weight: 9g
3) Talk time: 4 hours
4) Standby time: 70 hours

Features: 
1) The smallest and the lightest Bluetooth headset of 40mm
2) Bluetooth version 2.0 and support headset or hands-free profiles
3) Stores and charges simultaneously by using a Bluetooth charging case
4) Controls various calling features with the push of a button (last number
    redialing, voice dialing, call-rejecting, call-waiting and others)

Package include
1) WEP200 Bluetooth headset
2) AC power adaptor (2-pin US plug, 100 - 240V)
3) Charging case
4) User manual (with Chinese and English)
5) Ear hooks