Keyboard device interface rf wirelessmended usage universal keyboard layout qwerty keyboard language uk english connectivity technology wireless purpose universal keyboard style straight keyboard form factor standard pointing device no usb hub no fingerprint reader no hot keys yes keyboard number of keys 109 number of hot keys 5 windows keys yes keys operating life 10 million characters adjustable keyboard height yes full-size keyboard yes wrist rest no numeric keypad yes design colour of product white backlight yes surface coloration monotone ergonomics plug and play yes receiver wireless receiver interface usb power number of batteries supported 4 keyboard battery type aaa power consumption 15 ma mouse mouse included yes form factor ambidextrous movement detection technology laser movement resolution 2000 dpi customizable movement resolution yes buttons quantity 3 scroll yes scroll type wheel number of scroll wheels 1 buttons type pressed buttons operational conditions operating temperature (t-t) -20 - 65 c storage temperature (t-t) 0 - 50 c packaging content receiver included yes weight receiver dimensions (wxdxh) 42 x 18 x 8 mm keyboard dimensions (wxdxh) 441 x 165 x 18 mm mouse weight 127 g mouse dimensions (wxdxh) 107 x 60 x 27 mm receiver weight 6 g keyboard weight 722 g