T&G KE-29 Foldable Wireless Headset with Microphone(Blue)

Features:1. Good performance dynamic speaker.2. With or without microphone, volume control optional.5. Good Quality, deep bass, leading you into a long-lasting and comfortable gaming experience.7. Compatible with MP3 / MP4 / mobile phone / computer or other audio devices.Parameters:Transmission distance: 10mBattery capacity: 400mAhCharging time: 1.5 hoursUse time: 5 hoursStandby time: 300 hoursRated power: 15mW x 2Driver unit: 40mmImpedance: 32 ohmsFrequency response: 20Hz-20kHzSensitivity: 110+3dB S.P.L at 1KHz