Features: The Receiver transmitters Module offers digital signal output, broad compatibility with 38KHz IR protocols, and low power design, ideal for integration into microcontrollers and sensors expansion boards. Featuring stable signal transmission and universal protocol support, this module ensuring performances in remote control and data communication applications. Suitable for electronics engineers, enthusiasts, and home developers requiring precise signal control in robotics or automation projects. Perfect for integrating with robotic communication systems where 38KHz IR sensors compatibility and low energy consumption are critical. This IR receiver transmitters simplifies circuit design while maintaining performances across industrial controls, consumer electronics, and portable gadgets. Specifications: Component: ABS Emission Module:Approx. 23.5x20.8mm/0.92x0.92inch Receiving Module:Approx. 22.5x18.8mm/0.88x0.74inch Package Includes: 2Pcs IR transmitters note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.