cheapest by at least £20 I think, normally at least £140.
Dolby 7.1 Surround Sound & Dolby Pro Logic IIx with Digital RF wireless technology (up to 30' range)
CD-quality pure-digital sound transmission Digital input “pass thru” allows the X41 and a home theater system to be connected simultaneously
Volume control on ear cup Independent game & chat volumes Built-in mic monitoring Mic mute Bass Boost (button on ear cup) Oversized ear cups Fabric mesh ear cushions Removable mic with flexible boom Headset powered by AAA batteries (over 20 hours)
Transmitter powered by USB (no AC adapter) Includes headphone output on transmitter (second set of headphones can be used simultaneously or in place of X headset) Chat Boost feature automatically increases incoming chat level as game sound increases
50mm oversized speakers for deeper bass response