Very pleasantly surprised by the electric brush and the electric toothbrush. Very convenient to use. Brushing is a pleasure compared with the conventional brushing. Finally I brush my teeth more often now. Also excellent battery with 2000mAh rechargeable battery for about 6-7 weeks of brushing. Purchased with precision brushes clean EB20 I change every 3 months with 2 to 3 brushings a day of at least 3 minutes. Very happy with my purchase.