Powerful 10W output for clear sound and immersive karaoke experience. Built-in echo effects and 360-degree surround sound technology for professional-grade karaoke environment. Wireless connectivity with advanced Bluetooth-compatible 5.3 version for seamless connection to smartphones, tablets, TVs, and computers. Compact and lightweight design for portability, perfect for home parties or outdoor events. Sleek and elegant design made of durable ABS material, with easy-to-use top button controls. Item Name: Speaker Material: ABS Features: Versatile, Convenient, Durable Output Power: 10W BT Version: Version 5.3 Output Power: 10mw (Headphone Output) 10W (Speaker Output) Working Voltage: 3.7V Charging Voltage: DC5V=1A Frequency Range: 20Hz-20kHz Speaker Battery: 1800mAh Power Adapter: DC5V115db 1kHz THD