|
Features Brand: Oral-B Model: pro4000 Product name: 3D pro4000 adult electric toothbrush Place of Purchase: Germany Working principle: 3D, left and right rotation frequency 8800 times min: Front and back vibration frequency: 4000 times min Charging method: inductive charging Battery life: 2 times a day, 2 minutes each time, lasting about 7 days Battery display: charging prompt, power display Charging base: securely sealed charging base. Waterproof design: The whole street is waterproof and can be cleaned directly (except for charging stand cleaning mode, normal cleansing, heel care, sensitive whitening |
