... powerful sonic strokes/min 4.GS,UL,FDA electric /sonic toothbrush Model:RST2031 Specifications & Features: 1.31,000 powerful sonic strokes ... 30 seconds alerting5.3 operation modes (normal, soft, and massage) with LED indicator6.Extra long usage time7.Waterproof design UV sanitizer: 1 ... : ABS, DuPont bristleColors: white and silver (or customized) RST2031 sonic toothbrush with uv sanitizer