Specifications: With USB hub, plug and play, 3 hub ports and 1 fast charging port. Forward and back shortcuts on the side for easy browsing of web pages and explorers. Left and right hand design for easy control. Automatic power saving function. Item Name: Wireless Mouse Material: ABS Effective Distance: 10m Battery: 2 x AAA Alkaline Battery/2 x AAA Rechargeable Battery (Both Not Included) Wireless Frequency: 2.4GHz Rated Voltage: 3.0V Rated Current: 8mA on White, 15mA on Black Location Engine: Photoelectric Maximum Acceleration: 14inch/s DPI: 1200dpi Features: Ergonomic, with USB Hub, Wireless Wireless Mouse Size: 10cm x 5.8cm x 2.6cm/3.94" x 2.28" x 1.02" (Approx.) Charging Dock Size: 8.5cm x 6.5cm x 4.6cm/3.35" x 2.56" x 1.81" (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: (Battery Not Included) 1 x Wireless Mouse 1 x Charging Dock 1 x Connecting Cable