Sunburst Gear MM Series M3BR8 Portable All-in-One Rechargeable Battery Powered Monitor Speaker with Bluetooth Bluetooth connectivity for wireless music streaming, 3-Channel Mixer with XLR/Line, Stereo Line, and AUX input with individual level controls Operate and/or Charge with 120VAC-12VDC adapter (included), unit will operate/play while charging Built-in rechargeable battery for up to 20 hours of play time, operates and/or charges with 12VDC car socket adapter (cable included) Pole Receptacle for mounting on to any 35mm stand; shield speakers; Designed and Assembled in the USA