1、Equipped with 1200mAh rechargeable lithium battery, long using time, more reliable. 2、Perfect for karaoke, presentation, conference, and performance, meeting your needs. 3、Designed for indoor and outdoor karaoke speaker, PA speaker systems, power amplifiers, etc. 4、Suitable for both mobile phone and computer, good compatibility, convenient to use. 5、Adopt high quality metal material as well as fine workmanship, long service life. 1 x Microphone3 x USB Cables1 x User Manual Item Type: MicrophoneCondition: 100% brand newMaterial: Aluminium alloy Color: As shownSupported Sound Track: 4.1 trackChip: 1Sound Channel: Dual channelMulti-Speaker Mode: 2.0Battery Model: Built-in GRP8535062 lithium batteryBattery Capacity: 1200mAhAudio Interface: 3.5mmCharging: 5 V/1 AOutput Sampling Rate: 48KHzSize: Approx. 50x195mm/2x 7.7in