Get this Modernday biggest 15inches all in one Rechargeable portable Bluetooth public system with built-in amplifier and powerful rechargeable battery that can last up to 12hours for all your outdoor and indoor event, this PA system comes with speaker handheld, 2 gold color wireless microphones wit inputs 4 additional microphones. there is also a remote control so you can remotely choose ur music, control the volume and play/pause.it also has these amazing features such as bluetooth receiver, usb port,sd slot, fm radio, aux pot.echo mic volume, additional mic port (4 either microphone, keyboard or guitar ),and external battery socket and on&off switch.this means you have several ways to play your music.it has a handle and wheels for easy transport. More importantly upto 12hours ba3 life.