computer accessoroes Zx*DA1310C#s81. Ergonomically-designed 2.4 GHz wireless mouse， ideal for home or office use2. Optical tracking technology， works on many different surfaces3. 16 wireless working channels， automatic frequency jumping4. Frequency: 2402MHz-2480MHz5. Wi-Fi Range: 5-8m app.6. Rated Operational Current: 8-15mA7. Color: Red， Blue， Grey8. Mouse Size: 100x 65 x 35mm app.9. USB Receiver Size: 18 x 14 x 5mm app.10. Mouse Weight: 64g app.11. Powered by two AAA batteries (not included)12. Compatible with most laptop and desktop computers via USB receiver (packed in the mouse)， such as Windows 2000/XP/Vista/Linux/Win 7/MAC operation systemPackage Contents:1 x Wireless Mouse， 1 x USB ReceiverCautions:1. Operation distance is closely related to the environment.2. The mouse will shut off automatically and enter sleeping mode for saving power when it's not used for a long time. To wake it up， press the right or left button.