Samson's SE50 Omnidirectional Headworn Microphone is a low profile, micro-miniature condenser microphone with a 2.5mm capsule that provides outstanding audio reproduction and a moisture resistant design, making it perfect for presentation, fitness and other vocal applications. And with four included adapters, the SE50 can be used with most popular wireless transmitters. Features include: ·¦Micro-miniature condenser microphone for nearly invisible use ·¦Outstanding audio quality for presentation, fitness and other vocal applications ·¦2.5mm mic capsule ·¦Omnidirectional pickup pattern ·¦Easily adjusts to fit left or right ear, retaining band holds mic in place ·¦Moisture resistant coating ·¦Detachable cableIncludes cable adapters for compatibility with most popular wireless transmitters ·¦Windscreens, clothing cable clip and carry case also included · These headsets will work with any Samson systems that use a P3 beltpack, including the Concert 88 and UM1/77.