Sound Amplifier Adjustable Tone In Ear Hearing Aids Aid for the Elderly Hearing Device Digital Hearing Aids Care

Payment :
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Features:
100% brand new sound amplifier behind the ear
Super mini size and light weight, not easily to be seen
Adjust volume to the minimum before wearing
Choose an earplug of slightly bigger size to avoid whistler
Increase volume gradually to avoid sudden increase in sound
Powered by 1 x AA battery (NOT included)
Specifications:
Model: X-136
Max Saturated Sound Pressure: 130dB+5dB
Sound gain: ≥ 50db
Harmonic Wave Distortion:≤ 5%
Frequency response Range: 300--- 4000 Hz
Input Noise: ≤ 30 dB
Power Voltage :1.5 V
Working Current : ≤4mA
Battery Type: 1 x AA battery (NOT included)
Size: 7.0 x 4.0 x 2.0 cm (L X W X T)
Color: as the picture shown
Package weight: 28.9g
Package included:
1 x hearing aid amplifier
2 x earplug