Logitech MK550 Wireless Wave Combo 920-002555
From the Manufacturer
Comfort curves without the learning curve
With contoured curves in all the right places, this ergonomic keyboard and mouse give you the support you need to minimize hand and wrist strain—even after spending all day on your computer. More comfort also means you can type as you normally do using the standard keyboard layout you already know.
Logitech Unifying receiver
4 AA alkaline batteries (pre-installed)
Receiver extender cable