... the soft touch design. In the present state of artistic technology, this is the ideal product for ... Windows system.3. For Windows system, the PAGE UP key, PAGE DOWN key, HOME key, and END key ... along with the FN key.4. For Mac OS system, the PAGE UP key, PAGE DOWN key, HOME key, ... for iPad.Specifications:Bluetooth specification: Version 2.0Range of Frequency: 2.4 GHz Operating Voltage: 3.7V (Powered by ...