Wireless Professional Mic System - Pro G-Mark MicrophoneThis professional wireless microphone (uses 2 AA batteries, included) comes with a receiver that plugs into a 6.35 mm audio jack (such as an amp), or any standard 3.5 mm headphone jack with the included 6.35 mm to 3.5 mm adaptor. Therefore, you can connect this mic to a variety of speakers, karaoke machines, and other equipment. With a TRS to TRRS microphone adaptor (not included), this mic can also be used with your phone, tablet, or computer.Includes: 1 x wireless microphone, 1 x receiver, 1 x receiver charging cable, 1 x 6.5mm to 3.5mm audio interface, 1 x anti-slip ring, 1 x packing box