Function 1.Massage gum, remove the tartar and leftover between the tooth, and prevent the periodontal disease. 2.A dual-purpose device, slim sealed non-acute angle sleek design can be used as massage tool after removing the head of toothbrush. 1)9000 times per minute as brush head oscillate frequency, high efficiency clean teeth 2) Dual oscillates frequency meets different demand 3) changeable AAA battery 4) With waterproof, non-slip and replace brush head function 5)1 AAA battery can use over 50 days. 6)slim design 7) Size: 200 x 20mm
