Pyle PWMA170 Public Address System – 400 W Amplifier – Built-in Amplifier – USB Port – Battery Rechargeable USB/SD/MP3 6IN FULL RANGE SPKRThe PWMA170 is a portable PA from Pyle Pro that includes two wireless microphones, one handheld & one Lavalier microphone, to broadcast your voice to a large audience. Thanks to its 6′ speaker and 400 watts peak, the full-range loudspeaker has enormous power and incredible sonic performance in a relatively light package. Don’t want to go wireless? Plug in a wired mic, guitar, or other instrument using one of the two built-in ¼’ input jacks. You can also use the PWMA170 to play MP3s from a USB stick or SD card, or connect an external MP3 player like an iPod or iPhone via the 3.5mm aux-in jack. Add effects to your voice and tweak your sound with the echo, bass, and treble controls. Perfect for classrooms, tour guides, and business meetings. Runs on 110 V AC or 12 V for car use.