【Supervised by Medical Professionals】 Thoroughly supervised by three professionals: a dentist, a dental hygienist, and a doctor. Oral care professionals will support you in creating a healthy oral environment. The product is manufactured in a reliable Chinese factory with over 9 years of experience in developing electric toothbrushes. 【Professional-Level Care】 With 50,000 high-frequency vibrations per minute, thoroughly removes plaque and tartar lurking in the gaps between teeth and periodontal pockets. This incredibly thorough care supports oral health, delivering fresh breath and confidence. 【Long-Lasting Battery】 Equipped with a large-capacity 2,500mAh lithium-ion battery, allowing for approximately 180 days* of use on a single charge. Significantly reduces the hassle of charging, making daily oral care more convenient. *Based on approximately 4 minutes of use per day with a 2-3 hour charge. Total usage time is 8 hours. 【Two Replacement Brush Heads】 Ultra-fine 0.01mm bristles penetrate deep into interdental spaces and periodontal pockets, thoroughly removing plaque and stains. The firm bristles provide a luxurious brushing experience that envelops teeth and gums, making daily oral care more effective and comfortable. 【IPX7 Waterproof Function】 With IPX7 waterproof function, you can use it without worrying about water splashing in the sink. Furthermore, it can be used while bathing. Enjoy oral care while relaxing in the bath. It can be washed completely, so you can always keep it clean. *Be sure to fully attach the charging port cover before use. This product does not recommend charging with anything other than 5V/1A. Also, please be aware that charging with an AC adapter that supports fast charging of 1A or more may cause problems with the charging port.