... 4Ghz USB Optical Mouse 1. Operate range: 10M 2. Nano receiver, hot plug & play 3. Reasonable Price 4. OEM 2.4Ghz USB Optical MouseSpecification ... automtically sleeping and wake-up saving power function - Compatiable with Windows 98/2000/XP,NT4.0, Me, Linux , ... Windows 7,etc - Interface: USB- Frame Rate: 3200fpsOther Models:OUR FACTORY: HOT SALE! Cheap 2.4Ghz USB Optical Mouse for Notebook/PC