BD-108 RGB Portable Wireless Bluetooth Speaker

20hz 20khz 3.7v 32 feet advanced digital signal annoying mike feedback avoids annoying mike bluetooth Built-in rechargeable battery digital signal processor ensures 5-10 hours family,a great Christmas great Christmas gift high-performance audio driver home family karaoke Internal vocal removal led LED lights beats mini mini karaoke machine output port perfect portable Bluetooth speaker Portable Wireless Bluetooth RGB Portable Wireless ultra-portable karaoke machine version 5.0 vocal removal function Wireless Bluetooth Speaker