Protokart ABS Plastic USB 2.0 Wired Numeric Keypad for Laptop Tablet Desktops (Black) Protokart - Powered by KGM Innovative Solutions Description  It is an ingenious wired numeric keypad, which can be used via USB 2.0 connection and keep your workplace of clutter of wires and plugs. Ergonomic tilt and anti-slip pads on back provides optimum comfort An all in all, it is a perfect company on business travel for its handy and portable design. Simple plug and play, no driver installation requirements  Specification  Keyboard comes with 18 keys of 0-9 number keys, Del, Enter, Num Lock, Backspace, + - * / Number of Keys: 18Keys Interface: USB 2.0 Voltage: DC 1.5V Color: Black Case Material: ABS Keycaps Life: More than 10 million times Compatible with computer, laptop, phone, pad (with Bluetooth function)  Package Includes 1xUSB Numeric Keypad