KENSINGTON ProFit Ergo Wireless Keyboard 80004518 K75401WW Product Description: Kensington Pro Fit Ergo Wireless Keyboard - keyboard - US - black Input Device Device Type: Keyboard - ergonomic Interface: 2.4 GHz, Bluetooth 4.0 Wireless Receiver: Nano USB wireless receiver Connectivity Technology: Wireless Localization and Layout: US Protection: Spill-proof Numeric Keypad: Yes Colour: Black