Hurry now Bluetooth Wireless Hands Free With Mic

Function: For Mobile Phone,Sport,For Routine Office Work,Microphone,Supports music,Wireless Headphone,Portable,Bluetooth
Support APP: No
Line Length: None
Active Noise-Cancellation: No
Communication: Wireless
Support Apt-x: No
Support Memory Card: No
Connectors: None
Sensitivity: 110±2db
Vocalism Principle: Dynamic
Is wireless: Yes
Resistance: 30Ω
Frequency Response Range: 8-24000Hz
Plug Type: Wireless
Volume Control: Yes
Waterproof: No
Control Button: Yes
With Microphone: Yes
Style: Ear Hook
Wireless Type: Bluetooth
Bluetooth Version: V4.1
Charging Port: USB
Standby Time: Up to 280 Hours
Talk Time: Up to 6 Hours
Playing Time: Up to 5.5 Hours
Weight: 1.8oz (50g)
Capacity of Battery: 75mAh
F: Can Connect Two Devices