Ergonomic design grants you a comfortable grip, glossy black covering makes it presentable, dirty-proof and durable. The maximum operating distance can reach 10 meters under ideal conditions, and the USB receiver can plug and play without any software installation. Made of ABS, it is lightweight and durable. The length is 10cm, the width is 6.5cm and the height is 3.5cm. It is suitable for desktop computer, laptop, home, office shop and so on. Item Name: Mouse Material:ABS Power Supply: 2 x AAA Batteries (Not Included) Batteries: AAA Battery (Not Included) Rated Voltage: 1.5V Rated Current: 12-20mA Connection Type: 2.4GHz Interface Type: USB 1.1/2.0 Sensing Distance: 10 Meters Wireless Transmission Frequency: 2.4GHz Mouse DPI: 800DPI/ 1200DPI Size Details: Mouse Size: 100mm x 65mm x 35mm/3.94" x 2.56" x 1.38" (Approx.) USB Receiver Size: 18mm x 14mm x 5mm/0.71" x 0.55" x 0.20" (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: 2 x 2.4GHz Wireless Optical Mouse (Batteries Not Included) 1 X USB Receiver