Description With bluetooth 4.2 and DPS voice card, you can have a better experience by using handheld KTV condenser. This wireless bluetooth audio Mic supports one-button silencing, changes voice, and you can monitor real-time ear back. Built-in magnetic dual speaker, the power is 5W* 2, which makes you have a more pleasant music experience. Voice change KTV Mic uses moving-coil microphone core, so you can hear loud voice without distortion and noise. With high capacity 2600mah battery, wireless Microphone supports super long standby. Specification: Pickup: moving coil microphone. Horn power: 4 Ω 5 w * 2. Frequency response range:30Hz~10KHz. Maximum sound pressure level: 115dB 1Khz THD. Bluetooth: 4.2. Power supply mode: 5V 18650 battery Battery capacity: 2600mah. Endurance: 4-6h. Charging time: 3H. Operating temperature: -10℃-45℃. Microphone material: aluminum alloy. SIze: show as pictures. Color: red, gold, black. Package includd: 1* micphone. 2* USB. 1* English and Chinese instruction.