cntorich 18K-W-Numeric-Keypad - 2.4G Wireless Black

Numeric key mode, "Enter" shows the results of calculation, "=" can be used for simple function calculation. Function key mode, "Save" shortcut keys can save the editing data in time, you can enter these two "bracket" keys to facilitate mathematical calculation. Simply plug the USB receiver into an available USB port of your computer and it ready to use, no driver needed. Ergonomic design, thin and compact keypad in a laptop bag or briefcase to efficiently enter data wherever you go. The blue LED indicator on top left corner indicates whether it ready for data entry or not Model Compatibility: Windows-based PCs System Requirements: Windows XP, Windows Vista, Windows 7, Windows 8, USB port to operate. SPECIFICATIONS: *USB-enabled for plug-n-play use *Operating distance of 33' for gaming experience *18 keys numeric keypad *8 million strokes keys witch life * Material: ABS * Operation Frequency: 2. 4GHz technology * Power Supply: 1*AAA Battery Not Included PACKAGE INCLUDED: * 1 x 18 Keys Wireless Numeric Keypad