Specifications: Slim wireless touch mouse, lightweight and comfortable to grip. Unique touch sensor control brings excellent operation feeling. Featuring left/right and roller button function. High precision 1200DPI offers flexible control. Universal touch mouse for computer and laptop. Type: Wireless Touch Mouse Material: ABS Wireless Frequency: 2.4GHz Frequency Range: 2405MHz-2.475MHz Working Channels: 16 DPI: 1200DPI Engine: Optical Maximum Moving Rate: 28 inch/second Power Supply: 2 x AAA Batteries (Not Included) Features: Touch Sensor, Lightweight, Wireless, Portable, Universal Size: 90mm x 54mm x 20mm/3.54" x 2.13" x 0.79" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Touch Mouse 1 x Receiver 1 x User Manual (Others Not Included)