Oral-B S15-4 Elec. Toothbrush 4pk Brush Type: Electric Brush Head Features: The Oral-B Pulsonic is the slimmest, lightest and quietest Sonic Rechargeable Toothbrush. This brush provides 30,000 sonic vibrations per minute, has two cleaning modes (clean and sensitive) with super thin bristles for precision cleaning. Parts: Lifetime limited Labor: Lifetime limited