Description: Compact,comfortable to use and easy to carry Help you tohandle with numbers more professional and efficiently wherever and whenever Simple plugand play, no driver installation requirements "NumLock" key, switch to the number(0-9) function and other functions. Plug and play, no drivers required Specification: For businesses that handle high-volume numeric tasks, the 18 keys USB numeric keypad enables a more streamlined, efficient workflow. The keypad can be attached to your computer or to a kiosk, creating a dedicated space for numeric data entry. Keyboardcomes with 18 keys of 0-9 number keys, Del, Enter, Num Lock, Backspace, + - * / Best for Notebook users who always work with number keys / mini digital keyboard Compatibility: works with desktop computers under Window, USB-ready notebook and PC computers Number ofKeys: 18Keys Interface: Wired USB Voltage: DC 1.5V Color: Black Case Material: ABS Power: 1*AAA Battery (Not Included) Package Includes: 1x Wired USB 18 Keys Numeric Keypad