MANHATTAN Numeric Wireless Keypad 80020082 178846 Product Description: Manhattan Numeric Keypad, Wireless (2.4GHz), USB-A Micro Receiver, 18 Full Size Keys, Black, Membrane Key Switches, Auto Power Management, Range 10m, AAA Battery (included), Windows and Mac, Three Year Warranty, Blister - keypad - black Input Device Device Type: Keypad Interface: 2.4 GHz Wireless Receiver: Nano USB wireless receiver Connectivity Technology: Wireless Keys Qty: 18 Colour: Black Dimensions (WxDxH): 8.5 cm x 14 cm x 2.3 cm Weight: 90 g Manufacturer Warranty: 3-year warranty