IR is an pair of infrared photoelectric. Also from M5Go Kit, Contains 1x infrared emitter and 1x receiver. IR remote control is widely used in consumer electronics,it can be used to operate devices such as a television set, DVD player, or other home appliance, from a short distance. Since this unit comes with emitter and receiver, you can practice not only on IR encode but also on IR decode.
Great quality finishes.
Everything is perfect.
I have purchased various M5 products and have not gotten to the IR Emitter/Receiver yet. Still learning and enjoying the M5 products...