wireless number pad, jelly comb n030 portable mini usb 2.4ghz 22-key financial accounting numeric keypad keyboard extensions for data entry for laptop, pc, desktop, surface pro, notebook-black jelly comb this is a new high-grade wireless number keyboard with full size 22 keys. features reliability, ease-of-use, and user comfort, this numeric keypad will improve your work efficiency. you deserve it! <br><br> <b>specifications</b><br><br> model number: nk242e<br><br>keys: 22 keys<br><br> color: black<br><br> item dimensions l x w x h (inch): 5.7 x 3.5 x 1 <br> <br>system requirements: windows xp, windows vista, windows 7 / 8 / 10, usb port, internet connection<br><br> <b>note: numeric keypad is not fully compatible with mac system. (function keys do not work, while number keys part works fine. because apple doesn't support external keyboards with function keys)<br><br></b><b>package contents</b><br> <br>jelly comb 22-key wireless numeric keypad<br>