Condition: Brand New_x000D_ Item Type: Tongue Muscle Training_x000D_ Material: ABS_x000D_ Battery: 1pc AAA battery (not included)_x000D_ Usage: Unscrew the lower body to the right, load 1pc AAA battery, put the cover on, press the switch, or change the head for different functions_x000D_ _x000D_ Scope of Use:_x000D_ Massage oral cavity points, mouth salivation, oral teeth unclear, swallow obstruction swallow_x000D_ Children and adults over 3 years of age_x000D_ Electric massaging machine is used for oral perception massage rehabilitation. Vibrate and massage around your mouth to strengthen your muscles_x000D_ _x000D_ Note: this product can not be used for high temperature cleaning, use ultraviolet ozone or toy cleaning water and other non-high-temperature cleaning agent. 1Three heads, round head massage head, hairless massage head, toothbrush head. 2Can be changed according to the actual needs, can be used as a mouth muscle trainer, can also be changed as a toothbrush, easy to use. 3Massage the oral points, strengthen the strength of the oral muscles, training the flexibility and stability of the tongue. 4Prevent the mouth salivation, lisped, swallowing obstruction, powered by 1pc AAA battery (not included). 5Compact and light, single key operation, easy and convenient to use and operate. 1 x Massage Rod 1 x Hairless Brush Head 1 x Toothbrush Head 1 x Round Massage Head