Rechargeable portable speaker 8" 20W Bluetooth/USB LED light Characteristics Model: KSC-829 Bluetooth Version: 5.0 Chip: Zhongke Lanxun Battery capacity: 3600mAh Charging time: about 4 hours Speaker: 8 inch full frequency Power: 20W*1 Equipped with karaoke microphone and remote control Accessories included Remote control Wired microphone Audio inputs USB port SD card input AUX 3.5mm AUX 6.35mm for microphone Bluetooth Audio controls Knob for general volume Microphone volume control knob