The Pyle PWMA170 is a portable PA from Pyle 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 watt 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 1/4" 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 3.5 mm 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. It runs on 110 V AC or 12 V for car use.