Compatible for OralB IO Series 9/8/7 Replacement 3768 Magnetic Electric Toothbrush Charger Base Adapter(C Plug)

- Wireless sensing: Using electromagnetic induction technology, charging starts when placed, no plugging and unplugging needed, safer with waterproof and moisture-proof features. - Safety protection: Built-in fourfold protection against overvoltage, overcurrent, overheating, and short circuits to prevent battery damage. - Waterproof and durable: Fully sealed and waterproof, safe for use in bathrooms, can be rinsed directly. - Portable design: compact size, easily fits into a suitcase, charge anytime. - Multi-device sharing: Can be adapted to multiple different models of electric toothbrushes at home.