2-meter USB remote control extension cable, 4-speed regulation, 2/4/6/8/12 hour timing, cordless switching function. Can be used for USB ceiling fan, USB desktop fan, USB car fan, USB light, Only suitable for USB fan, USB light, cannot control product with build-in batteries. The remote control battery is 3V CR2025, which includes the battery. Before use, remove the insulation plastic sheet of the remote control battery. Only used for power and not support data transmission, this cable can adjust fan speed. Power cable length:200cm/6.56ft Remote battery:3V CR2025(included) Input 5V 2A Colour:White Material:Plastic Package Contents: 1 x USB Extension Cable 1 x 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.