Note: The ultrasonic wave and far-infrared will cause a warm feeling to your skin, This is the normal phenomenon.
Mara: Na ebili mmiri nke ultrasonic na infrared dị anya ga-eme ka ahụ dị ọkụ na akpụkpọ ahụ gị, Nke a bụ ihe nkịtị, biko jiri ya na ịdị nro