Feature 1 2.4GHz Wireless provides a powerful, reliable connection with an working distance of up to 10m. 2 Mouse is well compatible with for Windows 2000/XP/Vista/for Linux/for Win 7. Fits for desktop, laptop, PC, for Macbook and computer. 3 You can enjoy responsive and smooth cursor control with the 800-1200-1600DPI (adjustable) high-definition invisible tracking engine. 4 Compact Mini Design - you can take it wherever you go, either for home,office or travel, just slide it into your pocket, super portable and practical. 5 The slim ergonomic design will fit comfortably in your palm which will keep your hand from getting tired. You will remain comfortable even after long hours of clicking, tracking, and scrolling. 6 Specification Material: plastic. Size: 93*60*35mm. Wireless Technology:2.4GHz. Wireless Distance: 10m. Ajustable DPI Switch: 800-1200-1600DPI. Engine: Optical. Power Supply: 2 * AAA batteries (Not Included). Note 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. White acrylic decoration part does not have luminous function, just a decorative function. Package Include: 1 * Wireless Mouse. 1 * USB Receiver.