·Product Readme 3D floating design ·Brush head strokes 4,500 rounds per minute ·Strengthen gum by massaging gum lines ·Replacemet brush head ·Water-resistant and pocket slim design ·Long and soft nyon bristles gently on gums ·Power:3.0v(UM-3 2 piece)not included ·Unit Dimension:L208×D25
A504 Battery Toothbrush