Connectivity technology: Radio Frequency. (wide compatibility)System requirements for Windows XP/Win7/Win8/Win10/for IOS, with strong adaptability. (2.4GHz wireless connectio), 18-key design, with backspace key, you can easily correct the text. (Low power consumption) strong battery life up to 12 months, long battery life. (Ergonomic and quiet)The numeric keyboard uses the mute button to create a quiet typing environment for you. (long range transmission)Stable wireless connection function, effective control range up to 10meter.