Long battery life The karaoke speaker system uses a efficiency rechargeable battery in the main unit, and each of the two microphones also has a rechargeable battery. On a full charge, you can enjoy about 45 hours of playback. The included charger provides easy recharging of the unit. Dual wireless microphones Includes two wireless microphones. The karaoke machine doubles as a microphone charging station and can charge both mics simultaneously. The speaker and microphones automatically pair when powered on. The microphones feature a voicechanging function for fun and varied performances. Wide compatibility The portable speaker supports Bluetooth audio playback. Also includes USB, AUX, and TF card connection options. Multiple connection modes provide flexible use with different devices. Use scenarios Home and small party karaoke: for family gatherings, game nights, and casual singing sessions. Outdoor and travel use: portable setup for backyard barbecues, camping trips, or spontaneous performances away from outlets. Classroom or small event settings: music playback, background audio, or interactive karaoke activities with easy device connectivity.