Kensington 64355 Comfort Type Wireless Optical USB/PS2 Desktop (PC) Keyboard features hot keys for quick internet access and multimedia controls; optical mouse has 2 mouse buttons, and a third button and scroll wheel combo Wireless receiver features a built-in battery charger so you will always have a fresh set of batteries Set features plug-and-play connectivity that works right out of the box on any PC with an open PS/2 and USB ports Backed by a one-year manufacturer's warranty and free technical support Wireless desktop lets you get rid of the clutter, and includes an optical mouse, a keyboard, and a USB wireless receiver