WKB-3150UB - Adesso TRU-FORM MEDIA 3150 WIRELESS ERGO MINI TRACKBALL KEYBOARD. REMOVEABLE 1000 TRA

Wireless Technology, Ergonomic Contour Design, Split Key Design, Integrated Palm Rest, Membrane Switch, Built-in Trackball with Optical Sensor, Built-In Scroll Wheel, Removable Trackball, Auto Sleep and Power On/Off Switch, Nano Receiver, Compact and Portable