This is a Cyber Sonic hearing device. It amplifies sounds up to 40 decibels. It weighs less than 10 grams. It has 6 sound levels. It can be adjusted to fit either ear. Translation of the main text in the image: Amplifies sounds up to 40 decibels Weighs less than 10 grams 6 sound levels Can be adjusted to fit either ear Complete set consisting of 8 pieces Much better hearing! So small that it completely hides behind your ear Included inside: free protective case