Adesso Adseeo Tru-for 3500 2.4GHz Wireless Ergonomic Trackball Keyboard for Win 8/7/Vista/XP (WKB-3500UB), Black

The Adesso 2.4 GHz Wireless Ergonomic Trackball Keyboard offers you an advanced input device with ergonomic design, multifunctional features and a wireless range of up to 30 feet. The design of this keyboard with splitted key zones and gently sloped encourages natural position of hands, wrists, and forearm in maximum comfort for long use. The keyboard also features an integrated trackball which can take the place of your mouse, making it easier to control the movement of the cursor in your personal computer.

Specifications:

Key Layout: 105-Key US Layout
Key Type: Membrane
Connection: 2.4GHz Radio Frequency Wireless Technology
Working Range: 30 ft (10m)
Battery: (2) AAA
Trackball: Built-in
Indicators: Num Lock, Caps Lock & Low Battery
Windows Hotkeys: 13 (Home, Back, Forward, Refresh, Search, Favorites, Sleep, Wake Up, Power Off, Calculator, My Computer, Music & Email )
Multimedia Hotkeys: 7 (Play/Pause, Previous Track, Next Track, Volume Up, Volume Down, Mute & Eject)
Dimensions: 20.5 x 9.3 x 1.5? (521 x 235 x 38 mm)
Weight: 2.0 lbs. (844 g)
Requirements:

Operating System:Windows 2000 / XP / Vista / 7 / 8 / 10
Connectivity Interface: USB port for wireless receiver