Super Sonic Electric Toothbrush by Hyper Innovations Corp

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Operation Mode: efficient 23,000 strokes per minute

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Extreme Value: 2 free extra brush heads included

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Tool-less Replaceable Battery: 1 AAA battery included

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High Level Waterproof Rated: IPX7

nAdvance micro motion technology, powerful, lightweight and energy efficient with 23,000 strokes per minute. Battery operated, tool-less easy replaceable. 1 AAA battery lasts up to 90 days under normal use. High level waterproof rated at IPX7. International Product Quality Certificates: CE RoHS. International Quality System Certificates: ISO9001:2008 ISO13485:2003