Aquasonic Black Series. Comes with 8 Dupont brush heads, protective/travel case that holds two brush heads. The battery lasted about 45-50 days for me on two brushes/day. Each brushing has a 2 minute time broken down into auto 30 second timer x 4 per so you brush each quadrant for 30 sec.  4 diff brush modes:…

Aquasonic Black Series. Comes with 8 Dupont brush heads, protective/travel case that holds two brush heads. The…