水だけで磨ける歯ブラシとして４０年間に渡り製造販売を続けてきた株式会社シケンのソラデーシリーズの音波振動タイプ。水と光があたる事で発生する電子（イオン）の作用で歯垢を分解し、落とし易くします。そこをブラッシングするので同じ3分磨いても普通の歯ブラシと比べてブラッシング効率が変わり、誰でも簡単にツルツルで輝く歯を手に入れれます。本品は歯垢を取れやすくしたところに毎分18,000回か22,000回の音波振動で磨いて頂く事が出来るのでより簡単にスピーディーに磨いて頂く事が出来ます。SOLADEY RHYTHM 2： Remove stubborn plaque and fight off cavity-causing bacteria the whole night through. SOLADEY Rhythm2 sonic vibration ionic toothbrush is a brand new type of brush that harnesses the power of sonic waves and electrons to keep your teeth healthy and sparkly clean.Sonic vibrations at around 360 strokes per second： The effective powers of electrons and high-speed sonic vibrations combine to remove stubborn plaque and cavity-causing bacteria. Use the handy button to switch between Standard (18,000 vibrations/min) and High (22,000 vibrations/min) modes. Select the mode that best matches your brushing strength and the sensitivity of your teeth and gums.Solar Panels and TiO2 Semiconductor： The brush effectively removes plaque by emitting large numbers of electrons. The electrons coat the teeth entirely, ensuring they remain sparkly clean even 12 hours after brushing. *Based on a test of cavity-causing bacteria adhesion using apatite pellets.HOTARU Lamp: The blinking LED light indicates the generation of electrons. Witness the chemical actions firsthand and enjoy a fun and easy way to check the progress of your brushing each day.Patented in 12 countries (U.S.A., Canada, Japan, U.K., Germany, France, Netherlands, Sweden, Switzerland, China, Korea, Taiwan), SOLADEY is a Japanese brand with 40 years of history and has published 80 dental conferences and papers.