CHERRY Stream RF Wireless + USB Keyboard in Black (QWERTY UK) Maximum screen size___33.8 cm (13.3") 6 cm (27") Performance HP 6 cm (27") Performance HP segment Business Multimedia Built in microphone Yes Built in camera Yes Design Country of origin China Product colour Black Market positioning Business Ports & interfaces Headphone out Yes DisplayPort version 1 this 16″ ThinkPad mobile workstation is a visual powerhouse we have managed to make the packaging completely plastic free 4835 GHz Connectivity technology Wired & Wireless Multimedia keys Yes Keyboard keys operating life 20 million characters Keyboard number of keys 115 Keyboard key switch technology Cherry SX Numeric keypad Yes Keyboard form factor Full size (100%) Pointing device No Keyboard language UK English Keyboard layout QWERTY Device interface RF Wireless + USB Recommended usage Universal Design LED indicators Yes Surface coloration Monochromatic Product colour Black Adjustable keyboard height Yes Wrist rest No Ergonomic design No Keyboard style Straight Features Wireless range 10 m Power Number of batteries (keyboard) 2 Keyboard battery type AA Power source type Battery Mouse Mouse included No Operational conditions Storage relative humidity (H H) 0 85% Operating relative humidity (H H) 0 85% Storage temperature (T T) 20 60 °C Operating temperature (T T) 0 40 °C Sustainability Compliance certificates RoHS