External Keyboard Helper Pro is a good app for tablets Android. Since You will be able to take full control of your external USB and Bluetooth keyboard. The application in silent mode displays a message about the disconnect or connect an external keyboard and supports a lot of different layouts and provides a variety of options.
- the application does not require root;
- toggle between three keyboard layouts with the keys;
- use 16 different labels;
- disable Escape;
- automatically select layout.
External Keyboard Helper Pro you can download for free here.