Features: 1.23,000 strokes per minute 2.Sonic frequency, high efficiency 3.WaterproofIPX7and non-slip design 4.One battery can last for 150 days, if you use twice a day, 2 mins per time 5.Changeable brush head and battery 6.Slim design, easy to carry Specification: 1.Material:ABS,TPE 2.Size: 180X19.4X19.4mm 3.1 X "AAA" battery 4.Dupont nylon bristle Ningbo Seago Electric Co,.LTD is a professional manufacturer for Dental Care products, specializing in Sonic Toothbrush, Toothbrush Sanitizer, UV Wand Sanitizer and other electric gift items. Seago is extensively recognized as a highly reputable manufacturer in Oral/Dental Care industry .Seago was awarded by SGS with ISO13485:2003 and ISO9001:2000. Seago also passed social responsibility compliance audit from Sedex, Disney and Target etc.