Operation Tips:
Step 1: Put 4pcs AA batteries in(not included) or plug the USB cable tightly in the USB port. After plug in, there are 2 power buttons must be turned on.
Step 2: First, please turn on the black switch on the back of mirror. This is a master switch and then touch the sensor switch ( the big circle) with your finger, the mirror will light up.
Step 3: Secondly, please touch the sensor switch for several seconds, which will change brightness of the light gradually. Release your finger till the brightness of the light is right for you.