Item model number: WKB-3150UBWireless Technology - Works up to 30 feet of wireless distance. Operates on 12 different channels, each with 65,536 different IDs.
Ergonomic Contour Design - Minimizes forearm muscles from twisting and pains from Carpal Tunnel Syndrome
Split Key Design - Encourages natural position of hands, wrists and forearms for maximum comfort.
Integrated Palm Rest - Keeps your wrists in the most comfortable position.
Membrane Switch - 5 Million keystroke lifecycle for a quiet and fast typing experience.
Built-in Trackball with Optical Sensor - Tracks accurately and precisely with less muscle movement for maximum comfort.
Built-In Scroll Wheel - Provides convenience for office applications or web browsing.