1. Bluetooth Wireless Magic Mouse Silent Rechargeable Computer Mouse Slim Ergonomic Pc Mice ForOptical tracking technology, working on many different surfaces and suitable for home, office or game usage. 2. Contact Optical mouse, comfortable Contact. 3. Ultra thin design, making it very portable. 4. Bluetooth wireless technology, no need for a usb receiver. (Note: please check if your computer has bluetooth function) 5. System support: for Windows 2000, for Windows XP, for Windows 7, for Windows Vista, for Windows 98, for OS, for Windows ME, for Windows 8. 6. Pointing Device Host Interface: Bluetooth. 7. Power Supply: 1*AAA battery (Not Included). 8. Net Weight: 56g. 9. Item: Contact Mouse. 10. Type: Wireless Mouse. 11. Colour: white. 12. Material: ABS. 13. Size: x 55mm. 14. Package Contents: 1 x wireless mouse. Only the above package content, other products are not included. 15. Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3cm.