The Sennheiser MKE 2 is a premium version of an industry-standard omnidirectional lavalier microphone that works well in many different environments. Its slim design and light weight makes it both easy to conceal and unobtrusive to wear. With reduced sensitivity as well as a special umbrella diaphragm, this mic is designed to protect against moisture and sweat. Combined with a rechargeable AVX body pack, you have a convenient, great-sounding wireless option. And the transmitter automatically matches your camera's input sensitivity without you having to do any level adjustments onboard the camera or the microphone itself. Yes, it's that simple to get great audio, even on those occasions when a dedicated audio engineer just isn't in the budget.