Features:
It supports wireless Bluetooth connection， hands-free phone talking and voice prompt
It supports answer/reject incoming call and last number redialing
It can simultaneously connect with two Bluetooth devices
Compatible with Bluetooth V3.0/2.1/1.1， supports all the Bluetooth devices
High quality stereo effect and lowest noise and echo
Built-in battery for easily charging and working

Specifications:
Color: Black
Bluetooth version: V4.0+EDR
Protocol: A2DP， headset and hands-free
Transmission power: Class 2
Transmission frequency: 2.4GHz
Work range: 10m
Charging time: approx 2 hours
Talking/standby time: approx 8 hours
Battery Specifications: 65mAh chargeable polymer  lithium battery ， 3.7V DC
Size: 62mm x 39mm x 13mm
Cable length approx 70cm
Weight: 25g

Package included:
1X Bluetooth Headset V4.0 Stereo Voice Prompt Earphone for  BH693
1x  Cable length
1x manual