The Sony MDR-IF3000 is a high-end wireless headphone set that is designed to provide a comfortable form of mobility. With the headphones comes a high-power infrared wireless transmitter, headphones, a rechargable battery with up to 30 hours of battery life, a connecting cable, and a UniMatch plug adapter and AC power adapter. The MDR-IF3000 headphones also include additional features such as an 90 degree transmission angle, auto on/off that is triggered when headphones are put on your head, a vibration function for games and movies with level volume control, a single volume control dial, easy connection supported, Ferrite Magnets and up to a 24 foot transmission range. The Sony MDR-IF3000 wireless headphones were released on May 26, 2006 and have an MSRP of $99.99, which is listed on the official Sony website.