Buy.com has the Altec Lansing AHP612 Wireless Studio Headphone for $41.99 with free shipping.
--Omni-directional 900 MHz technology delivers clear, accurate sound through walls, floors and ceilings up to 150 ft from the transmitter base
--Studio-grade 40 mm neodymium earphones deliver a wide frequency response and bass you can feel; Adjustable padded headband and over-the-ear leatherette ear pads