The specification for the Logitech presentation remote can be found here:
https://www.logitech.com/en-gb/products/presenters/r400-wireless-presenter.910-001356.html
The specifications for the Logitech clicker can be found here:
The specifications for the Logitech keyboard and mouse can be found here:
https://www.logitech.com/en-gb/products/keyboards/k400-plus-touchpad-keyboard.html