PS:Please listen in on the model: Replacement for XIAOMI T300/T500*Note: Non-original, applicable brush head 1. Ultrasonic electrical toothbrush can effectively eliminate plaque and reduce gingival necrosis. 2. The appearance of the three-D brush adapts to the luster of the teeth. The small and gentle brush head is easy to the contact inside your mouth. 3. Adopt DuPont American tynex classic zero bristles, brush authorised through FDA and UV sterilized. 4. Vacuum packaging, scientific safety standards. 5. This type is appropriate for folk who smoke or drink coffee. 6. Replacement for XIAOMI T300/T500 Electric toothbrushes. 7 you've got any questions about the toothbrush model, you may consult guest service. Thank you packaging-