Main Features: Professional Wireless Bluetooth Karaoke Mic Microphone , Enjoy your music!!! Multi-function button can adjust music, echo, volume. You can switch between the previous song and the next song mode. Adjustable echo length effect for super surround, immersive. The USB port allows you to plug in USB and convert to MP3 and play it directly.!! Perfect Gift for family, kids, friends, colleagues!!! The handle is made of precision metal matte, exquisite touch, ABS fashion board + dustproof net cover, highlighting premium quality. As a gift to family, kids, friends, colleagues, are very perfect!!! Features of this Karaoke Mic Microphone: 1.Aluminium alloy metal body,the handle adopts the precision metal matte to handle it without slipping, fingerprint and delicate feel. 2.Professional mixing chip provides voice, reverb, volume adjustment, as you like to adjust the music rhythm. Specification: Color:Rose Gold Material: Aluminium Alloy Weight: 360g(12.85oz) Speaker power: 4Ω 4W * 2 Frequency Range: 150 - 20Khz Output Power: 6W(Speaker Output) Charging Voltage: DC 5V Charging Time: 2-3 hours Sing Time: Up to 5-10 hours Battery Capacity: 1800mAh Products Size: 9.45*2.95*2.36in Transmission Distance: 10m(32.8ft) Power Supply: Build-in Li-ion battery Maximum sound pressure level: >115db 1KHz THD<1% Reverb Mode: Echo sound reverberation Package Includes: 1 x Karaoke Microphone 1 x Colorful Hard Box 1 x Micro USB Cable 1 x Instruction Manual