This belt pack was designed for fitness instructors to securely hold and protect wireless microphone transmitters. The soft and cushioning neoprene belt stretches to hug your waist and is so incredibly comfortable you will forget you have it on. It also helps keep sweat away from your mic, providing valuable protection for the investment in sound equipment. Dimensions: Pocket size - 2.75" x 5.75" x .625" Fits up to - 3.125" x 6" x 1"