Sony MDRHW300K Digital Wireless Headphones

Hear uncompressed audio wirelessly with the MDR-HW300K headphone system. The large 40mm driver units with neodymium magnets deliver broad, balanced, and accurate sound for an exceptional wireless listening experience. The built-in, rechargeable Lithium-Ion batteries provides up to 10 hours of continuous playback or enjoy the convenience of passive mode without charging the battery using the included stereo connection cable.
High quality wireless headphones w/uncompressed signal
Auto-tuning 2.4 GHz wireless signal transmission
Powerful 40mm driver units with neodymium magnets