Dimensions: perfect for tight spaces. Voltage Range: Versatile input from 3.6V to 24V, suitable for various power supplies Transmission Distance: Reliable 50m range, ensuring effective remote operation Frequency: Operates at 433MHz for less interference and improved performance Application: Ideal for remotely controlling fans, lights, and other electronic devices Design: Compact and efficient, designed for easy installation and durability Due to different batches, there may be differences in product appearance and printed text, which not affect use Color: Black Material: ABS Package Contents: 1SET * DC Power Switch 433MHz Receiver 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.