The MIPRO's ACT30T is a bodypack wireless microphone transmitter that works with the MIPRO ACT-311 and ACT-312 receivers. The ACT-30T is meant to be worn comfortably on the belt line and comes in a 2.9 oz small body with a mute switch and adjustable belt clip. The 4-pin mini XLR connector is compatible with all MIPRO lavalier, headworn microphones and instrument cables.