1. No wiring required, just wherever needed. 2. USB remote control switch cable, plug it in and it's ready to use 3. USB male input, USB female output, plug and play, sensitive response, signal can pass through the wall, suitable for controlling the power supply of USB-powered products 4. Note: It only controls power, not data. Load recommendation: 5A 5. Standard USB interface, easy to use, purpose: control USB power on and off, plug it in and use it, suitable for: USB fans/night lights/small water pumps... and other USB peripheral products Description: 1. Connector model: input USB male, output USB female 2. Product frequency: RF signal 433MHZ 3. Power supply range: 3.7V to 16V (universal for wide voltage) (input and output have the same voltage) 4.Module power consumption: standby about 5mA 5. Load capacity: 3A current (within 30W) 6. Coverage distance: about 30 meters 7. Coding type: learning type, each set of coding Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:As Shown Material:ABS Package Contents: 1 x USB Switch Cable 2 x Button Remote Control 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.