Advantages: ✔Type-C charging ✔Waterproof function ✔20 bulbs LED light, the wider the coverage area, the better of the whitening effect ✔Safe ingredients, suitable for sensitive teeth ✔Ergonomico groove design, bring 95% compactness between teeth and gel ✔10 minutes timer function, you can do anything without worry ✔Touch button with high-tech turn it with light touch ✔Discharge Duration: About 150-200 minutes, 10 minutes / time, can be used 15-20 times.
