KENSINGTON ProFit MidSize WirelMouse red 80004518 K72422WW Product Description: Kensington Pro Fit Mid-Size - mouse - 2.4 GHz - Ruby Red Device Type: Mouse Connectivity Technology: Wireless - 2.4 GHz Colour: Ruby Red Orientation: Right-handed Wireless Receiver: USB wireless receiver Movement Detection Technology: Optical Movement Resolution: 1750 dpi Features: Scrolling wheel, Nano wireless receiver Battery: 2 x AAA type Manufacturer Warranty: 2-year warranty