Unit Powered By Internal Rechargeable Battery Pack. 2 Mic 1 Guitar And 1 Audio 1/4 Inputs. Echo Bass And Treble Controls. Rf Charge Low Batt and Power Led Indicators. Dynamic Wireless Mic W/ 3 Position Power Swicth and Led. Operation Range: 100ft. 8 Full Range Speaker. 100w Rms 200w Peak Power. Unit Battery Life: Approx. 5 Hours. Mic Battery Life: 45 Hours. PylePro PWMA230. 4 AH/12Volt Rechargeable Batteries. 35Mm Speaker Stand Mount.