New Bluetooth V4.1 Wireless Headset

Line Length:None Is wireless:Yes Connectors:USB Style:Headband Volume Control:Yes Function:For Internet Bar,For Mobile Phone,Common Headphone,Monitor Headphone Control Button:Yes Support APP:No Wireless Type:Bluetooth Sensitivity:95±3dB Waterproof:No Vocalism Principle:Hybrid technology Support Apt-x:No Support Memory Card:No Plug Type:Wireless With Microphone:Yes Active Noise-Cancellation:Yes Frequency Response Range:20-20000Hz Communication:Wireless Resistance:35Ω Function:For Routine Office Work