Mini USB keyboard with integrated smart touchpad and compact dimensions ACK-540U+ SUPER COMPACT: Full functionality can be this space-saving. We saved the number pad and integrated it virtually on the keyboard. The keyboard is ideal when there is little space TOUCH PAD: Forget about your mouse. With the integrated touchpad you have all the functions with you that a separate mouse would also offer MODERN DESIGN: For a pleasant feel when typing, we have equipped the keyboard with a softskin coating. This looks simply awesome ENJOYABLE TYPING FEEL: The ACK-540U+ is equipped with a soft-touch membrane technology. This provides a noticeable but quiet keystroke STATUS LED: Decent blue status LEDs tell you which functions of the keyboard are currently activated. So you have everything in view