Vibrating bristles polish stains away on and between teeth. Why is Pulsar 3-D White right for you? Pulsar is a manual brush with deep cleaning power, so it cleans better than an ordinary manual brush. How does Pulsar 3-D White work? Pulsar has soft vibrating bristles and helps break up plaque between teeth. Just turn it on and brush as you would with a regular manual brush. Recommended to use with: Crest 3D White Vivid Paste - It can reduce up to 80% of surface stains in 14 days. Fully disposable. No need to change the battery or brush head. The non-replaceable Duracell battery is designed to last the lifetime of the brush head, approximately 3 months. Actual battery life may vary.