Oral-B: Pro Battery Precision Clean ElectricToothbrushTrust the consistent battery performance of the Oral-B 3D White toothbrush toremove plaque and whiten teeth by removing surface stains. The 3D White roundbrush head is inspired by dental professional tools for a tooth-by-tooth clean,with specially engineered bristles for optimal tooth coverage.Features: 2-minute coaching timer. ProCore constant power delivers optimal performance every time. 2 AA batteries included. Round cleans better. Dentist-inspired round brush head delivers superior clean. Compatible with a variety of Oral-B refill heads for every dental need. Brush heads should be replaced every 3 months. Oral-B is the #1 dentist-recommended toothbrush brand worldwide.