The FOREO ISSA 2 Electric Sonic Toothbrush helps to gently clean teeth without over-brushing. Fully-rechargeable, the electric toothbrush resists stains, tartar build-up and cavities. Inner PBT polymer bristles tackle plaque while ultra-soft silicone bristles massage the gums. This helps to prevent gum recession and tooth enamel damage. Equipped with 16 adjustable cleansing modes, the waterproof toothbrush can be customised to suit you. It features a built-in timer and 3D flexible brush head for precision cleaning. Plus, every 1-hour charge lasts up to 365 days of use.