Features: 1. Infrared Remote Control, Four-Way Relay Module, 5v Relay, Multi-Mode Switching 2. Support Usb Power Supply, Low Power Consumption, Low Latency, Ttl Serial Communication, 5v Relay, Multi-Mode Switching 3. Low Signal Transmission Delay, Support Infrared Control, Powerful Function 4. Supports Infrared Control, Powerful Function, And Supports Type-C Port Power Supply 5. Supports Switching Between Self-Locking, Inching, And Interlocking Modes, And Has Led Lights For Prompts. Introduction: The Infrared Remote Control Four-Way Relay Module Is Programmed By The Stc8g1k08-38i-Sop16 Chip. It Sends Instructions Through The Infrared Remote Control To Control The Four-Way Relay. It Has The Advantages Of Multi-Mode Switching, Low Signal Transmission Delay, Low Power Consumption, And Stable Performance. Press The "Ok" Button On The Infrared Remote Control To Switch Modes. Description: 1. 3C Rated Voltage Range: 36V 2. 4-Way 5v Relay: K1, K2, , K4 From Bottom To Top Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use size: About 47.5 x 65mm Material: PCB+Plastic colour: As Shown Package Contents: 1 x 4-Way Relay Module 1 x Infrared Remote Control 1 x Single Row 4pin 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.