Dual Wireless Microphones and Ready Charging Station The karaoke system includes two wireless microphones. It also serves as a microphone charging station, allowing both microphones to charge simultaneously. The speaker and microphones automatically connect when powered on, providing a quick and hassle setup. The microphone offers a voice changing function for variety in performances. Wide Compatibility and Flexible Playback Supports multiple music playback options: Bluetooth wireless connection, USB port, AUX port, and TF card. Multiple connection modes allow you to choose the most convenient method for your setup and library. Long Battery Life and Easy Charging The system uses a efficiency rechargeable battery in the speaker, with each microphone also having its own rechargeable battery. After a full charge, you can expect about 45 hours of play time. The included charger makes it easy to recharge the machine and keep the mics ready for next use. Use Scenarios Home karaoke with family or friends: pair the mics with the speaker, connect a phone or tablet via Bluetooth, and sing along with duets using the two wireless mics. Small parties or gatherings: play music from USB, AUX, or TF card, switch on the voice changing feature for added fun, and enjoy without complex setup. Outdoor or travel use: the builtin rechargeable battery supports longer play time for onthego karaoke parties, with convenient charging through the included charger.