| Bluetooth v1.1 compliant (HID profile) Carrier Frequency: 2.402GHz ~ 2.480GHz Spread Spectrum: FHSS (Frequency Hopping Spread Spectrum) Class II decice, 10 meters coverage area (in open space) Power:DV 3V ( 2x AAA Ni-Mh battery ) Data transfer rate up to 723Kbps O.S. compliant to Windows XP/2000/ME/98SE, Mac OS X 10.2.6 or later Dimension: 85.2 x 50 x 32.6 mm Gross Weight: 64g FEATURES Bluetooth Human Interface Device (HID) supported. Small size and exquisite design. 800 dpi Optical Technology. Scroll wheel with pairing LED indicator. Power on/off switch for power management.
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