The Braun Oral-B Charger 3731 is a professional care electric toothbrush charger designed specifically for Braun Oral-B electric toothbrushes. I purchased this in a lot of Cordes so I don’t actually have a toothbrush detected on. If you purchase an aquarium, any issues, just let me know when I can help facilitate a return for a refund. There is some yelling to the Cordes as you can see in pictures as well as residue in crevices of the charger. Please look carefully at the photos so you can see the imperfections I described. Happy to combine shipping.