Oclean's Air2 Ultra Quiet electric toothbrush series will bring you an unprecedented and surprised noise-cancelling experience. Smart sonic electric toothbrush is less than 45db vibrating sound, just like a whisper, avoiding influence your roomate. Equipped with a 2-minute smart timer, this green rechargeable power toothbrushes will automatically shut down after two minutes, and intelligently pause every 30 seconds to remind you to change the brushing area. IPX7 waterproof, you can enjoy brushing your teeth in the bath or shower. Perfect gift for business trips and traveling,also the best gift option for the family, loved ones, friends, business partners, etc. The best gift for happy Christmas.