Apple - Superior wireless sound

Harman Kardon Bluetooth Wireless Over-Ear Headphones

       Harman Kardon's Bluetooth (BT) over-ear stereo headphones feature the latest in wireless Bluetooth connectivity for use with your iPhone, iPad or iPod touch. This USB-rechargeable model has a battery that lasts up to 12 hours. Unlike competing Bluetooth headphones, it can continue to work even after the headphone battery dies with the use of the included bypass cable.

•     Superior-quality wireless audio
•     Built-in microphone and playback controls
•     USB-rechargeable; battery lasts up to 12 hours
•     Convenient dual use—wired or     wireless
•     User-detachable, soft leather earpads

Source - http://store.apple.com/us/product/