Compatible with Oral-B-Braun Toothbrush_Compatible with S12 / S18 / D12 / D10 / D16 / D17 / D18 / D19 / D20 / D29 / D34 / D36 / D12013 D12013w D12523 series / 0C18 / OC20 / 3709 / 3728 / 3737 / 4736 / 4717 / 4729 / 8850 / 3756 / Pro 7000 1000 2000 3000 4000 8000 9000 et _Waterproof Base_This toothbrush charger surface is fully sealed and waterproof design, it is made of insulated ABS material_IP67 grade waterproof. If it drops into the water and it won't be damaged and still works. _Easy to Use with Safety Induction Charging_This toothbrush charger is very easy to use and it is inductively charged. Put it down and charge it, pick up and automatic power off.So you can charger your electric toothbrush more convenient and safer. _Travel Use with Wide Voltage_With dual voltage from 110V to 220V, 0.9W power consumption, you can take the portable electric toothbrush charger when you are on business trip or travel. It can be used safely oversea, like: US, Canada, Japan, Russia, Korea, Thailand, Cuba, Brazil, China, etc.