Item Type: Tongue Muscle Trainer Material: Plastic + stainless steel + silicone Usage: Massaging acupoints in the moutu cavity, strengthening the muscles of the mouth, training the flexibility and stability of the tongue, preventing drooling, unclear speech, and swallowing disorders Battery: Built in 2000mAh lithium battery Package List 1 x Host 1 x Toothbrush Head 1 x Massage Head 1 x Silicone Head 1 x USB Cable 1Powerful Function: Effectively massage acupoints in the mouth cavity to improve mouth health and muscle strength, reliable and practical. 2Tongue Rehabilitation: Train the flexibility and stability of the tongue, preventing drooling, unclear speech, and swallowing disorders. 3Multifunctional Device: Provides comprehensive training for the mouth muscles, improving overall mouth motor skills and flexibility. 43 Replacement Heads: The round head massage head can be replaced according to actual needs, and can be used as a toothbrush for easy use. 5Battery Operation: Powered by a long lasting 2000mAh lithium battery for convenient and continuous use, perfect for your needs.