New Design Delux M618 Vertical Wireless Mouse - Black&Gray Basic parameters Applicable Type: fashion personality Mouse size: rat Work: Laser Connection: Wireless Mouse interface: USB Receiver: nano receivers Reception range: 10m Key number: 6 Wheel Direction: two-way wheel Technical Parameters High Resolution: 1600dpi Resolution adjustable: two files Transmission frequency: 2.4GHz Refresh rate: 8000 frames / sec. Key life: 3,000,000 times Maximum Acceleration: 8G Ergonomics: Right Design Other parameters Mouse Colour: Black Grey ower Mode: Section 2 AAA (7) battery-powered System Support: Windows 7, Windows Vista, Windows XP Other features: The third-generation vertical mouse Mouse accessories Packing List: Mouse x1 Warranty card x1 Manual x1 Receiver x1