The mic belts are an inexpensive way to extend the life of your bodypack transmitters for protecting against moisture and impact. it will contain your Bodypack Transmitters of all the major wireless brands for MyMic, for Shure, for AKG, for Trantec, for Audio-Technica, for Mipro, for Chiayo, for Fitness Audio, for Sennheiser, for Samson, for Electro-voice, for Beyerdynamic, for Telex, for JTS and others. It feature an adjustable buckle for waist sizes up to 100cm with a standard vertical pouch. SPECIFICATIONS: Adjustable Size: 40-110cm Material: High quality Neopren 3 tiny holes for good ventilation Made of neoprene - Hand Washable Mic Belt Only, Body pack Transmitter is not included.