MagicW Digital 38khz Ir Receiver 38khz Ir Transmitter Sensor Module Kit for Arduino Compatible Based on the 38KHz IR Receiver Sensor 1pcs 38KHz IR Receiver Sensor and 1pcs 38KHz IR Transmitter Sensor Can be used for remoter control,Can be compatible with Wrobot Digital 38KHz IR Transmitter Sensor Power Supply : 5V Modulate Frequency : 38Khz