Note:due to different production batches, the printing screen printing/appearance is different, which does not affect the use. Colour:Black 1. Infrared Transmitter module: Supply voltage: 5V Working environment: -25-+85 Storage temperature: -30-100 Wavelength: 940mm Signal type: Digital signal Infrared central wavelength: About 582nm-940nm Infrared emission distance: About 1. (5V 38khz) Infrared emission Angle: About 25 degrees Wiring instructions: DAT: indicates the digital output interface VCC: positive terminal of the 5VDC power supply GND: The negative pole of the 5VDC power supply 2. Infrared receiving module: Supply voltage: 5V Working environment: -25-+85 Storage temperature: -30-100 Carrier frequency: 940mm Signal type: Digital signal Infrared emission distance: About 10 meters Infrared emission Angle: About 35 degrees Wiring instructions: DAT: digital output interface VCC: positive terminal of the 5VDC power supply GND: The negative pole of the 5VDC power supply Material:PCB+ components Package Contents: 1 * IR Transmitter Module 1 * IR Receiver Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.