Features 1、[Advanced BT Technology] : This karaoke machine is equipped with the latest BT 5.3 technology, ensuring a stable and high-quality connection with your devices. It supports a BT connection with TVs and smartphones, and is compatible with mainstream karaoke apps, providing a seamless singing experience. 2、[3D Surround Sound & Voice Conversion] : Our karaoke machine offers a 3D stereo surround sound for a more immersive singing and listening experience. It also features 5 voice conversion modes, allowing you to experiment with different singing styles and have more fun. 3、[Dual Wireless Microphones] : This karaoke machine comes with two wireless microphones, enabling duet performances without the hassle of tangled wires. The microphones have a battery capacity of 400mA, ensuring long-lasting use. 4、[Portable Design with Atmosphere Light] : This karaoke machine is compact and portable, with a built-in 2000mA battery and a handy carrying strap, making it perfect for outdoor activities like camping and picnics. The RGB atmosphere light adds a fun and festive touch to your singing sessions. 5、[Powerful Speaker & Long Play Time] : The karaoke machine has a 10W speaker, delivering clear and powerful sound. It takes 2-3 hours to fully charge and can play for 3-5 hours, allowing you to enjoy your karaoke sessions without worrying about the battery running out. Specification Specifications: BT Solution: BT 5.3 BT Distance: 10M Speaker Power: 10W Charging Time: 2-3 hours Play Time: 3-5 hours Input Voltage: 220V Output Voltage: 5V current 1A/2A Speaker Battery Capacity: 2000mA Microphone Battery Capacity: 400mA Product Colors: Black, White (optional) Speaker Size: 15.5 * 13.8 * 15.8cm/6.1 * 5.4 * 6.2inch Microphone Size: 3.5 * 12cm/1.4 * 4.7inch Package List Packing List: 1 x Speaker 2 x Microphones 1 x Type-C Charging Cable 1 x instruction Manual