ETYMOTIC RESEARCH BEAN Quiet Sound Amplifier (ER135-QSA)

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Features of ETYMOTIC RESEARCH BEAN Quiet Sound Amplifier (ER135-QSA)

  • Operates so smoothly it is almost undetectable
  • Provides high-frequency amplified hearing for the soft sounds of speech
  • 2-position switch offers two levels of enhancement
  • Excellent speech intelligibility in both quiet and noisy conditions
  • Loud sounds are heard naturally with no additional boost
  • Subtle, low-battery signal alerts user before the battery dies
  • Long battery life (10-12 days) on a tiny cell
  • Designed to fit comfortably and look good in either ear
  • No adjustments needed; no controls to adjust
  • Does not require custom molds

Product Info for ETYMOTIC RESEARCH BEAN Quiet Sound Amplifier (ER135-QSA)

The BEAN Quiet Sound Amplifier in brushed gold is a small wireless personal sound amplification device that discreetly slips into your ear much like an ear bud you dont have to worry about tubes or fitting the unit behind your ear As a personal amplification device the BEAN Quiet Sound Amplifier features a built-in sensor that amplifies soft sounds while keeping the volume steady on louder noises or even reducing it for extremely loud noises such as fireworks or the strike of a drum. is an authorized Etymotic Research dealer

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Sizing & Specs

Input Modes Microphone
Gain LO (15 dB) - HI (23 dB)
Signal Processing Analog
Compression Type Wide Dynamic Range Adaptive Compression
Maximum Output [LO] 112.5 dB SPL
Maximum Output [HI] 115 dB SPL
THD 3%
Battery Type 10A zinc-air
Battery Life 10-12 days
Battery Current (typ) 425 uA
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Additional Information

Range Gear
Product Type:
Personal Sound Amplifiers
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1 Review

  • 4
    ETYMOTIC RESEARCH BEAN Brushed Gold Quiet Sound Amplifier (ER135-QSA-BG)

    Posted by Trusted customer on Aug 4th 2017

    After I finally figured out which ear piece fit, the sound amplifier worked great. But after a short period of time it fell out of my ear and I thought that I'd lost it, only to discover that I ran over it with the car in the driveway, after just a couple of days of use!

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