This Voice Sound Amplifier helps people with hearing impaired problem to hear sound and voice as normal people. A hearing impairment or hearing loss is a full or partial decrease in the ability to detect or understand sounds. Caused by a wide range of biological and environmental factors， loss of hearing can happen to any organism that perceives sound.

Factors that may cause hearing impairment:

Conductive?

Sensorineural hearing loss?

Long-term exposure to environment all noise?

Genetic?

Disease or illness?

Medications?

Physical trauma

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Features:

100% Brand New! Behind the Ear Sound Amplifier?

Super Mini size， it is not easily been seen?

Adjust volume to minimum before wearing?

Choose an earplug of slightly bigger size to avoid whistler?

Increase volume gradually to avoid sudden increase in sound?

This product is not medical device?

Accessories: an elegant carrying case， 2 earplug of different sizes !#!amp!*! 2 batteries?

Color of the monitor: Beige?

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Maximum sound output (+/- 5 dB) :130

Maximum acoustic gain (+/- 5dB) = 50?

Total Harmonic Wave distortion = 5%

Frequency response Range (Hz): 300 - 4000

Input Noise (dB) = 30

Power Voltage (V): 1.5

Current (mA) = 4

Battery Type :AG13 x 2

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Package:

1?x cheap Behind the EAR Sound Voice Amplifier Deaf Hearing Aid for sale F-138

2?x earplug?

2 x LR44 batteries?

1 x Instruction manual (English)

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