The Sony MDRIF330RK allows you to listen to wireless stereo headphones over a 23-foot range, and at an angle up to 90 degrees from the source. The self-adjusting headband allows you to comfortably fit the open-air stereo to your own head. Thirty-millimeter speaker drivers deliver deep bass sound, and an automatic on/off selector allows you to choose your input.
It comes with a ni-cad battery that can last up to 35 hours. Optional AA batteries, which can last up to 100 hours, can be used as well.
