The Philips Sonicare Series 6500 electric toothbrush features Next-Generation Sonicare technology, a dedicated Sensitive mode, 3 intensity levels, pressure alert and two brush heads: S2 Sensitive and W2 Whitening. It offers a sensitive mode and three intensity levels, along with a pressure alert for optimal gum care. The toothbrush includes S2 Sensitive and W2 Whitening brush heads.