PRO SMILE sonic toothbrush with 5 cleaning modesExcellent sonic technology removes plaque 5 cleaning modes: gentle - normal - intensive - massage - polish2 minute timer + 30 seconds interval for 4 quadrants charging the lithium-ion battery via USB - battery life 25 days splash-proof according to IPX6 dynamic cleaning effect for a better oral care! For daily cleaning of normal teeth and gumIntensive: For particularly intensive cleaning of tooth surfaces with whitening effectMassage: For gum massage with gentle vibrations of the brush headPolish: For an extra treatment for removing discolouration and polishing the tooth surfaceWith the help of the USB charging cable, the lithium-ion battery can be charged from any USB power supply (e.g. from smartphones, etc.) or USB interfaces (such as PC, notebook, etc.) for an application of 25 days.