Highlights: Communication:Wireless Wireless Type:Bluetooth Vocalism Principle:Dynamic Style:Ear Hook Control Button:Yes Active Noise-Cancellation:Yes Function:Video Game,For Mobile Phone,For iPod Sensitivity:103±3dB Frequency Response Range:20-22000Hz Line Length:0.6m Resistance:32Ω Waterproof:No With Microphone:Yes Product Description: Battery: 3.7V 80mAh Charging power: 5V / 80mAh Sensitivity: 103db +/- 3dB Impedance: 32Mw Transmission distance: Accessible 10m Frequency: 2.4GHz Talk time: about 2-3 hours Music Time: about 2-3 hours What’s in the box: 1 x Magnet Bluetooth Headset, 1 x Cable Weight: 0.3 SKU: 190531112954