1. Portable ,clear ,healthy design. 2.Sound waves shaking. 3. Can use at any where and any time. 4.Perfecting tooth.

Specification

Feature:	1. Portable ,clear ,healthy design. 2.Sound waves shaking. 3. Can use at any where and any time. 4.Perfecting tooth.
working frequency:	25000HZ
working current:	120mA
electrical rotational speed :	12500+-15 revolutions/minute
unit weight:	28.3g
Unit Size:	19*17*153 mm
battery:	AA1.5V X 1

electric ultrasonic toothbrushes, sonic electric toothbrush