LENOVO Professional Wrls Keyboard (EN) 80008028 4Y41K04068 Product Description: Lenovo Professional - keyboard - QWERTY - US English - grey Input Device Device Type: Keyboard Interface: Bluetooth, 2.4 GHz Wireless Receiver: USB wireless receiver Connectivity Technology: Wireless Localization and Layout: QWERTY US English Keys Qty: 104 Hot Keys Function: P1 to P4 hot keys Keys Style: Chiclet Numeric Keypad: Yes Key Switch Type: Scissor-Key Colour: Grey Dimensions (WxDxH): 43.74 cm x 12.88 cm x 1.48 cm Weight: 586 g Package Type: Brown box Manufacturer Warranty: 3-year warranty