Wide compatibility with Oral-B round-head toothbrushes, including Oral-B Pro models S12 S18; OC18 OC20; D10 D12 D16 D17 D18 D19 D20 D29 D34 D36; D12013 D12523 D12013w series; Professional 500 600 1000 2000 2500 3000 4000 5000 7000 7500 3709 3728 3737 3756 4717 4729 4733 4736 6500 8000 8850 8900 9000 9000s Genius 6000 8000 and more. The charger base is suitable for round-head electric toothbrushes and is compatible with Braun Oral-B toothbrushes. Inductive charging base: You can take out the toothbrush to use without turning it off, and put it down after use to continue charging. Waterproof base: IP67 fully sealed design, the charger shell is made of insulating ABS material, and the interior is fully sealed and waterproof, making it safe to use in bathrooms and other humid environments. Charging safety: When the charger detects the toothbrush is fully charged, it automatically shuts down and enters standby mode to protect the battery and make charging convenient and safe.