Corresponds to Bluetooth(R)2.0, available to handle wireless numeric keypad.
3 kinds of hot keys with 1 button that is available to boot up Excel, calculator soft, and Internet browser. If PC corresponds to Bluetooth(R) HID profile, it is available to use without connecting receiver. ※ Even if PC does not correspond to the Bluetooth(R) HID profile, it is available to use it by providing Bluetooth(R) adapter that conforms to the standard. It is available to use it on non-magnetic material: by approximately 10m, on magnetic material like steel desk, etc.: by approximately 3m. (our research) With convenient [Tab] key to work in Excel, convenient [=] and [(] key [)] keys to input functions, convenient  and [BS] keys to input numbers. For easy keying with 19mm key pitch and membrane keyboard with solid push feeling. Using large font that is easy to see on key top. Has been resolved in "NumLock" problem by hardware, no need to install anti-virus software.