Bs53 Manhattan, Wireless Speaker, Bt V5.1, With 3600Mah Battery, For 4 Hours Of Work, Supports Bt, Fm, Tf, Usb, Aux Playback Modes, With Two Wireless Microphones1. Sizes: 340*300*630Mm. Weight: 5.8Kg.2. Bt 5.1, Chip: Blue Trum.3. Battery Capacity: 3600Mah, Charging For About 4 Hours.4. Use Time: 4 Hours.5. Speaker: 2*8-Inches Full-Frequency Speakers. Power: 2*20W.6. Supports Bt, Tf Card, Usb Flash Drive, Aux, Fm And Other Modes. Supports Loop Recording And Playback, Support Microphone Ducking.7. Two Wireless Microphones Included, Supports Wired Microphone Input. A Variety Of Flashing Modes.