Portable rechargeable 45 W PA System with MM-107 Dynamic Microphone. The PA system features a Class D amplifier and a 5'' full range speaker. It can be hand carried using the built-in handle, by the included adjustable padded shoulder strap, or mounted on a table or microphone stand. It will last on standby up to 10 hours when powered by its built-in lithium rechargeable battery and can recharge in approximately 4 hours. The unit may also be powered by an AC adapter. The 3.5 mm input jack for connection of an external MP3, iPod, CD player and 3,5mm output jack that allows you to connect the device to the input on an external sound device. The dimensions are 160 mm x 178 mm x 285 mm and the weight is 2,7 kg.