Condition: 100% Brand New<br />Material: Acrylic<br />Casing Color: Black<br />Light Color: Blue・ White・ Green・ Red・ Yellow (easily chosen or changed by a switch at the bottom of the product)<br />Life Span: 50・000HRS<br />Measurement: Universal Shape (65mm Diameter Circular Shape) Please check whether this works for your car before buying. For very few car models・ it is too large. It is your responsibility<br />to make sure that this shape fits your car.<br />1. A light-sensitive chip is embedded into the product. It can sense the daylight so that the light can be turned on in the evening while automatically turned off during the day.<br />2. The product contains a vibration-sensitive device. When the car is shut off and the driver leaves・ the light will stay on for 20 seconds and then enter the standby mode.<br />3. Both the startup and the light color changing are easily conducted by the switches at the bottom of the product.<br />4. The product is  charging by a USB cable. The charging port is placed on the edge of the product. Its interface is Micro USB・ the same as ordinary Android phones  interface. The cable will be provided as the accessory.<br />