There is 2 kinds of product.The One contains tongue cleaner and the other not contains. - It generates UV rays and ozone,which sterilize various viruses and germs of a toothbrush.- The lifetime of the lamp is about 20,000 hours so it can be used semi-permanently- Electronic control turns off the power automatically after it sterilizes for 7 minutes- The cover is made of polycarbonate, and the main unit of ABS for its superior quality- Closing the cover will activate the lamp for seven minutes indicating the disinfection process- In case it is used twice a day, its lifetime lasts for about 2 months.- Tongue cleaner is contained in the model of TS-301- Acquired CE certificate(Registered no,k1282/E04)- Dimension: 214mm x 49mm x 28mm