Using wireless keyboards
Wireless keyboards can be used to remotely control the teleprompter app.
Use the arrow keys on the keyboard to perform the following functions:
Start recording
Start / Pause scrolling
Increase speed of scrolling
Decrease speed of scrolling
Supported devices
When looking for a suitable keyboard, ensure you find one which is compatible with iOS devices.
This keyboard has been successfully tested with the app:

Logitech K400
Pairing with your device
Use the manufacturer’s instructions to pair your wireless keyboard with your device. Once paired, no further setup is required in the teleprompter app.