The MMX 300 is ideal for all broadcasters and play-by-play announcing. It's also great for gaming, multimedia and Voice over IP applications as well as for use with hi-fi systems or mobile devices (CD/DVD/MP3). The technology of the MMX 300 is based on the reliable HS 400 aviation headset. The noise-cancelling microphone ensures a clear and precise voice transmission even in noisy surroundings. The closed design guarantees absolute undisturbed enjoyment of game and sound combined with a high comfort due to soft, replaceable ear and headband pads. The MMX 300 also provides mini jack plugs to connect to a PC.