We are a professional manufacturer to produce computer peripherals like mice, keyboards, bluetooth headset&dongle and other high-tech products. Item NO:RF3660 Resolution: 800dpi Safety criterion attestation:CE、FCC Operating Frequency:27MHz Transmit Frequency:256 idBm(Class 2 ) Availability Distance:1.5M System Requirment---- Compatible with windows 95/98/Me/NT4.0/2000/XP/Mac OS 8.5∽9.X Connector: USB
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