Double Noise Reduction Function：The newly upgraded smart chip, the noise reduction is 30% higher than usual. It sounds more natural and provides you with a wonderful experience. Excellent sound quality and comfortable listening. Suitable for mild, moderate and hearing loss. people with poor hearing, the angle of the earplugs can be adjusted, suitable for left and right ears.
Safe and Comfortable Personal Sound Amplifiers：Personal Sound Amplifiers are made of the latest materials, the shell is nano-coated, waterproof and sweat-proof; material domes of different sizes are suitable for everyone, and equipped with cleaning tools to extend the service life; very small, very suitable for your ear canal.
Adjustable mode：Personal Sound Amplifiers When you are in different environments, you can switch between "H"mode quiet and ”L“mode noisy programs, which can ensure you have a clear sound in most environments.
Double Noise Reduction Function：The newly upgraded smart chip, the noise reduction is 30% higher than usual. It sounds more natural and provides you with a wonderful experience. Excellent sound quality and comfortable listening. Suitable for mild, moderate and hearing loss. people with poor hearing, the angle of the earplugs can be adjusted, suitable for left and right ears.
Extra long time use： Personal Sound Amplifiers is fully charged for about 4 hours and can be used for about 40 hours. You can be fully charged at night, which can satisfy you for 2 days of use.
After-sales Service：If you encounter problems when using our ear Personal Sound Amplifiers, please feel free to contact us, we are happy to serve you.
Features:
Battery type and size: A13
Max sound out put:115+/- 3dB
Sound gain:>= 25dB+/- 3dB
Total harmonic wave distortion:<= 3%
Frequency range:700-4500MHz
Input Noise:<=32dB
Voltage:d.c.1.4V
Current:<=1.5mA
Package content:
1 X Doosl Personal Sound Amplifiers
4 X Earplug
1 X USB Cable
1 X Manual
1 X Brush
