Razer - Ouroboros

Manufactures description:

From an adjustable arched palm rest, to a retractable back, as well as four interchangeable side panels, the Razer Ouroboros is fully customizable to your personal needs. It fits perfectly with any hand length, shape and grip-style – maximize your comfort and reduce fatigue over extended play.

The Razer Ouroboros is outfitted with the most advanced and configurable sensor yet, the all-new 8200dpi 4G laser sensor. It tracks so precisely, you always hit targets exactly where you need to. It can also be calibrated to your specific surface, and has adjustable cut-off to lift-off tracking, empowering you with more control than ever. Dual gaming-grade wired/wireless technology

As Razer is the pioneer of the world first gaming-grade wireless tech, you can be assured the Razer Ouroboros performs as well cordless as it does corded. With a 1ms response rate, your command is executed first even if you and your opponent react at exactly the same time.

When the battery depletes in the Razer Ouroboros, just plug in the USB cable so you can keep gaming while it recharges, for zero downtime.