RANVOO AirJet Enamel (PH3) applies the same air-jet bubble cleaning structureas the adult model, with a lower-intensity micro-sweeping motion suited toages 8–14.A purpose-built compact brush head reaches the rearmost molars, and afluoride-treated head option is available. The bristles fade in color with use,making replacement timing visible.Three modes (Gentle / Clean / Whitening) plus Travel Lock, with a monochromedisplay for simplified operation. IPX7 sealed construction allows the body tobe rinsed under water.Specifications- 261.1 × 34.4 × 30.4 mm, 150 g- 1,600 mAh (5.92 Wh), 30 days (high) / 50 days (low)- 5V–0.8A input, 4W, IPX7- Colors: Blue / Purple- For ages 8–14- Distributed in Korea as a hygiene product (electric toothbrush), not a medical device.