We all love and hate Gears of War series for different reason, but it seems Mad Catz/Triton is going all out with these Accessories, At the moment there is no word on a UK release. So Untill then your just gonna have to look at these pictures of them
Gears of War 3 Throat Communicator for Xbox 360®
Price $29.99
Transmit clear-clear voice commands to your squadron with the Gears of War 3 Throat Communicator for Xbox 360. Utilizing a military-inspired behind-the-neck design, skirmishes become immersive as you go head-to-head with hostiles on Xbox LIVE. Lightweight, comfortable, and complete with an adjustable neckband boasting foam-rubber inserts for a custom fit, the Throat Communicator provides hands-free messaging for warriors of all sizes.
Gears of War 3 Dolby 7.1 Surround Sound Headset for Xbox 360®
Price $179.99
Official artwork taken directly from the game elevates the headset rank to collector’s item. Pulsating LEDs glow red to make the graphics spring to life. And with the distinct Selective Voice Monitoring (SVM) feature, you have the option of hearing your own voice through the headset. Featuring independent game and voice volume controls to customize your gaming experience and a pair of high-fidelity speakers to enhance in-game acoustics, you get the control and power required for domination over the Locust Horde. 
Gears of War 3 Performance Stereo Gaming Headset for Xbox 360®
Price $99.99
TRITTON’s Gears of War 3 Performance Stereo Headset sets a new standard for gaming headsets. Connecting to the Xbox 360 console via USB and equipped with a host of innovative features, notable attributes include an advanced communication system with independent game and voice volume controls. With the distinct Selective Voice Monitoring (SVM) feature, you have the option of hearing your own voice through the headset. Precision-balanced speakers provide rich, full stereo audio, while the detachable, flexible microphone— optimized for transmissions over Xbox LIVE —delivers crystal-clear voice commands to your squadron.