SmartTech Wireless Numeric Keypad, 2.4G -18-Key USB Silent Financial Numeric Keypad for Laptop Tablet Desktop PC Computer DescriptionIt is an ingenious wireless numeric keypad, which can be used via wireless connection and keep your workplace free of clutter of wires and plugs.Ergonomic tilt and anti-slip pads on back provides optimum comfort Besides it is power-saving with automatical hibernation mode. 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 requirementsSpecification Bluetooth 3.0 - Compatible with Bluetooth-Capable Macs and PCs Keyboard comes with 18 keys of 0-9 number keys, Del, Enter, Num Lock, Backspace, + - * / 10m distance is okay for the secure connection Number of Keys: 18Keys Interface: Bluetooth 3.0 Voltage: DC 1.5V Color: Black Case Material: ABS Keycaps Life: More than 10 million times Operation Range: 10M (Without signal disturbance and no direction limit) Power: 2*AAA Battery (Not Included) Compatible with computer, laptop, phone, pad (with Bluetooth function)