NOTE:Gesture and remote control do not include batteries and need to be purchased separately Easy installation: wipe the sticking position in advance, tear out the 3M Velcro on the gesture light and the remote control, stick it to the position you want to place and press for 30 seconds, you can start to show your interesting LED car tail lights Compliant with American traffic law: This car back window hand light is composed of 176 LED lamp beads. The light is amber and does not flicker, so it can be used legally in most states. It is also a good gift for birthdays and festivals family and friends Moderate brightness: This car finger light indicates clear and bright, very bright day and night, so that people can clearly understand the gestures displayed Interesting gesture lights: 3 gesture modes to choose, help to remind and attract the attention of other drivers, or express your thanks, it will be a good choice if you like cool car electronics Instant Emotional Expression: This car light can express the driver's feelings, communicate in a safe way, suitable for alleviating emotional, friendly communication on the road