Cyber Sonic HK-1548

As Seen on TV Products
1.Cybersonic Hearing Aid
2.Sound enhancer machine for people with hearing problem 
3.High technology so small, it fits right behind your ear 
4.Amplify sounds up to 40 decibels
5.Very light for better comfort
6.volume levels
7.Specification:

Max saturation sound pressure level: 125db
Full-on acoustic gain>45db
Frequency response: 450-3800 Hz
Equivalent input noise :< 30db
Operation voltage: 1.5v