Thank you for viewing! (o^^o) Bioelectrical Oral Care Toothbrush "PLAQLES Plaqueless" ◼︎Main unit and 2 unused replacement brush heads Charging cable included ◼︎2 replacement brush heads Two boxes (new and unopened) I received these from the official store and used them for about a month, once a day. The main unit shows some signs of use, but I have confirmed it is working and you should be able to use it without any problems. It breaks down plaque with a painless 10 million hertz ultra-fine current. This is a new concept bioelectrical toothbrush that doesn't require scrubbing, with over 500,000 units sold worldwide. It has a vibration-free design, allowing you to brush without damaging the surface of your teeth. It also cleans plaque from gaps between teeth. It has a simple design, and comes with 4 marker colors, so multiple family members can use it. It has IPX8 waterproof performance, so you can use it in the shower with peace of mind. Apply toothpaste to the bristles of the toothbrush. When you press the button on the main unit, the LED blue light turns on and the bioelectrical current TROMATZ WAVE operates for about 2 minutes and 30 seconds. Please use it in the same way as your usual brushing while the ultra-fine current is flowing. Please purchase if you understand that this is a used item. I pay close attention to inspections when listing items, but there may be oversights. If you are sensitive to such things, please refrain from purchasing. Thank you for your understanding.