Amazon.com: Ear Force X4 Dolby Digital Wireless (Headphones): Video Games
Product Features
* Dolby Pro Logic II provides surround sound from PLII encoded audio and also enhances stereo
* Hear XBOX Live Chat plus stereo game sound with a heart-thumping bass boost that adds sonic realism
* Dynamic Talkback lets you hear chat even when the game gets louder; Separate controls for game and chat volumes.
* Eliminates game sounds picked up by chat mic; mic monitor lets you hear what you're saying
* Digital input for highest XBOX sound quality, plus analog input for TV and other audio sources
1/13/09 Ear Force X4 Dolby Digital Wireless (Headphones) $139.98 
