This Portable PA Battery-Powered Speaker helps you take your music on the go, packed with a built-in rechargeable battery that lasts up to 4 hours on a single full charge. When it comes to choosing what type of music to play through this Battery Speaker System, the possibilities are nearly endless. With this PA speaker system, you can stream music from a mobile device wirelessly through the built-in Bluetooth receiver. Insert an SD card or hook up a USB device through the auxiliary input. Play a favorite tune in stereo with the 3.5mm stereo aux input or the dual RCA (red and white) inputs. Best of all, this is a portable PA speaker, you can plug in a guitar to create a portable concert, or a microphone to hold a spontaneous karaoke night with friends and family.