Brand: Cyber SonicIncluding 3 batteries, ear plugs, manual and a carrying case.Amplify sounds up to 40 decibels.It weighs less than 10 grams.With 6 Volume Levels which you can easily fine tune as needed.High-Definition Digital sound reproduction.It conforms to either ear.Increased sensitivity equals better hearing.More accurate sound reproduction.Delivers more distortion-free sound.Quiet Performance with less circuit noise.vv