The Pyle PWMA170 Dual Channel 400 Watt Wireless PA System is perfect for use in America, Europe, and other compatible countries. It features a switch that lets you change between 110v and 220v. This compact PA amplifier loud Speaker can be used in many different settings and is perfect for those who need a reliable PA system. With its Front Panel Control Center, you can easily adjust the Volume, Bass, Treble, and Echo to your desired levels. The Pyle PWMA170 also comes with a Handheld Microphone, Headset, Lavalier Mic, and all the necessary cables to get you started.