1. Comfort and Precision 2. Tiny USB Nano receiver 3. Adjustable mouse movement speed 4. No mouse pad required Specification1. 4-button wireless optical mouse with USB Nano-receiver2. CPI button for quick resolution changes (800 - 1600 DPI)3. Wireless technology: 2.4 GHz, GFSK RF modulation, 80 channels, 32 bit device ID, RF power < 2 mW4. Operating distance: up to 8 m5. Optical resolution:800, ...