1、Independent reverberation technology makes your voice sound better, with audio processor, automatic noise reduction optimizes the your voice 2、Is a microphone as well as a speaker, and the integrated microphone for singing and playing, where you are, can become your singing scene 3、Innovative 45 magnetic loudspeakers, the stereo surround sound effect is shocking enough, you can use the microphone anytime, anywhere to show your singing voice 4、Use singing to record interesting moments. For various song types, 5 sound special effects are set to meet multiple styles 5、Wireless stable connection, support fast audio signal transmission. The battery life is up to 3‑4 hours, and the microphone lithium battery has a built in protection board to prevent power loss 1 x Singing Microphone1 x USB Cable1 x User Manual Item Type: Singing MicrophoneMaterial: ABS, Metal, LEDColor: PinkPickup: CapacitiveOutput Power: 1 x 5W (speaker) 45 MagneticImpedance: 4 OhmsFrequency Range: 100Hz~10KHzMaximum Sound Pressure Level: >>115dB1Khz Total Harmonic Distortion〈1%Reverberation Mode: Sound ReverberationPower Supply Mode: Built in Lithium Ion BatteryPower Supply Voltage: DC-5VBattery Capacity: 1800mAhUse Time: 3-4 Hours of Work, 5 Hours of ChargingTransmission Method: Wireless