1. Register up to 3 devices, you can change the connection of your device with the push of a button.
2. Can be used with various devices such as Windows, Android, macOS, IOS and so on.It is basically compatible with various Bluetooth devices, such as iPads, smartphones, PCs, etc. Note: It cannot be connected to a computer that does not have Bluetooth function. Please make sure your computer has Bluetooth built in before purchasing.