Used to configurate your TK boards.
you need to use with your Battle Unit (like Tamiya apple or Piranha) to receive the IR signals and also to count the LED flashes during the programming.
We also sell the IR Config kit if you don't have the Battle Unit system
https://www.rctanklegion.com/products/ir-receiver-config-kit-for-tk-boards
for full information, please refer to:
TK20: http://www.clark-model.com/eng/prod_rx20/index.html
TK40: http://www.clark-model.com/eng/prod_rx40/index.html
TK60: http://www.clark-model.com/eng/prod_rx60/index.html
TK80: http://www.clark-model.com/eng/prod_rx80/index.html