Features: New mini digital keyboard with 19 keys. Ergonomic design. Plug and play and hot swappable. Power on indicator LED light. Compact, lightweight, easy to carry. Extremely long service life (over 10 million times). Compatible with USB port on any PC or laptop. Supports Windows 98 SE/2000/XP/Vista/MAC. Specifications: Key layout: 19 keys (as shown in the pictures) Operation systems: Windows 98 SE/2000/XP/Vista/MAC Color: Black + Gray USB cable length: 1.25m Keypad size: 140x101x14mm Keypad weight: 112g Package size: 200x132x21mm Package weight: 132g Package including: 1 x Numeric Keypad