Dreame's first buttonless smart sensor electric toothbrush, the NB01, simplifies the brushing process with its posture recognition system, allowing you to simply pick it up and brush, stopping as soon as you remove it from your mouth. Equipped with a 72,000 brushes per minute sonic motor, it senses brushing pressure in real time and automatically adjusts the intensity level to achieve a smooth transition from gentle to deep cleaning, truly delivering a "human-machine integration" brushing experience. | Dreame | | NB01 Smart Sonic Electric Toothbrush | Black | Best Buy