KOLAV-D2836 Portable speaker with battery Rechargeable Battery 7.4V 4000MAh USB/TF/FM/Bluetooth/TWS Function DRIVER UNIT：6.5 INCH *2 2.RMS: 40 W 3.Woofer With Light 4.USB Remote 5.Rechargeable Battery 7.4V 4000mAh 6.two wireless mic