Adesso WKB-3150UB Wireless Ergonomic Split Keyboard — Removable Trackball & Scroll Wheel, Integrated Palm Rest, Portable — Compatible with Laptop/Desktop/PC/Windows XP/7/8/10

Compact ergonomic wireless keyboard designed to reduce wrist and forearm strain while offering precise cursor control. Wireless range up to 30 feet and operates across 12 different channels with 65,536 different IDs for reliable interference-resistant connection. The contoured shape and split key layout promote a natural hand, wrist and forearm posture to help minimize twisting and discomfort associated with Carpal Tunnel Syndrome; an integrated palm rest supports the wrists for added comfort. Quiet, responsive membrane switches provide a fast typing feel and a 5 Million keystroke lifecycle. Features a built-in, removable trackball with an optical sensor to reduce large hand movements, plus a built-in scroll wheel for easier web browsing and office use. Small and portable — ideal for laptop, desktop or PC setups — compatible with Windows XP, 7, 8 and 10.