Toothbrushes Thanks to each buyer for taking photos, we will update more photos. Dentists recommend replacing the nozzle every 1-2 months, which can be purchased by clicking on the link: buy the nozzle of J110: Powerful cleaning up to 31000 strokes per minute 6 HOURS CHARGE FOR MINIUM 15 DAYS USE Long battery Ilife, supported by USB charging , safe and easy auto shut off after full charge , compatible with any power source Gently and effectively reaches deep between teeth and along the gumline 2 minutes auto timer, 30-seconds intervals to ensure thourough brushing in four quadrants IPX-7 waterproof to be used at bath and shower Tooth-waved bristles made with Dupont nylon , Imported food grade DuPont brush, anti-shedding, anti-scattering, rounding process ,to suit teeth topography for through cleaning of gums and hard to reach areas 5 vibration modes: clean/plish/white/gumcare/sensitve, solve various oral problems Package Include: 1 x Toothbrush handle + 4 x toothbrush heads + 1 x USB Charger FAQ Address And Full Name: 1.Please make sure your address in matched with your