Wireless iOne Scorpius N4WL Numerical Keypad Mouse with Tenkey Pad And Large Numbers.
Great for use with laptops, With three mouse buttons and a scroll wheel, the mouse provides precise tracking with no moving parts. Then press the mode switch and access the 19-key numerical keypad for fast data entry. 3 Mouse buttons and scroll wheel Num Lock independent from keyboard. Specifications: Designed to work with IBM PC compatible Compatible OS: Windows XP, Vista, Windows 7 Operating temperature : 0℃ to 50℃. Operating humidity : 10% to 85% Supply voltage : 5 V±5% Current consumption : Max 40 mA Switch : 5,000,000 life cycles FCC, CE, ESD and BSMI certification System Requirements: IBM or compatible PC Windows XP, Vista, Windows 7 Package Contains: Scorpius N4WL keypad User guide Keypad Dimension: Keypad: 3"(L) x 5"(W) x 1"(H) inch