Adesso WKB-3150UB 2.4-GHz Wireless TruForm Ergonomic Computer Keyboard with Trackball, for Windows, Mini

• Wireless ergonomic keyboard with split key layout;• Integrated palm rest for wrist support;• Built-in optical trackball and scroll wheel; quiet membrane switches;• 2.4-GHz wireless with 30-ft. range to USB wireless receiver;• Removable Mini Ergo trackball for easy cleaning;• 1-touch multimedia hot keys;• Includes USB wireless receiver, 2 AAA batteries, and manual;