This wireless PA system is perfect for events where you need to move around with your microphone and retain the same quality sound you expect from a wired amp. It comes with a wireless mic that operates at a distance up to 100 feet. The amp is compact and lightweight for easy portability. It runs on a rechargeable battery, so you don't need to keep buying new batteries - simply plug in with the included AC adaptor and charge. Adjust the sound to your liking with the treble and bass controls. This amp even includes an echo knob for a wicked sounding voice effect. There's also a ¼" jack input to plug in a wired mic. The wireless mic required one 9V battery (not included). In addition we have added an additional PDMIK2 Professional Moving Coil Dynamic Handheld Microphone that makes your voice sound great. Constructed with durable zinc alloy for great everyday use. Sounds great in the studio or on the stage. Includes a 16 foot 6.5mm microphone cable. We have also added the PMKS3 Tripod Microphone Stand W/ Extending Boom and PPFMXLR15 XLR Male to Female Microphone Cable. Product Dimensions: PWMA100 - 6.9"W x 4.3"D x 9.7"H; PDMIK2 - 7.7'' x 0.8'' x 1.0''; PMKS3 - L3.5''X W3.5''X H38''