Features Quality Sound: The microphone deliver clear, crisp audios, ensuring quality sound performance for a professional karaoke experience. Bluetooth-Compatibility: Easily connects to Bluetooth-enabled devices, such as smartphones, tablets, and speakers, for seamless wireless operation and convenience. Advanced DSPs Technology: Features Digital Signal Processing DSPs that enhances sound quality, ensuring clear, rich audios while reducing distortion and background noise. Whistling-Prevention: Built-in anti-howling and anti-whistling technology effectively minimizes unwanted feedback and echoes, providing a smoothes and enjoyable audios experience. Long-Range Wireless Connectivity: The microphone offers stable, long-range wireless performance, providing flexibility and free-dom of movement during performances or speeches. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Receiver Power supply: 654060 lithiums battery Capacity: 2000amh 3.7V Charging time: 2-3 hours Battery life: about 5 hours Microphone: Power supply: 14650 lithiums battery Capacity: 1200mah 3.7V Microphone charging time: 2-3 hours Battery life: about 8-10 hours Package List: 1x Wireless Karaoke Mic Set