SKU: EM-9003
EM-9003 Sound Amplification Electronic Earmuffs
Folding electronic earmuff with AUX input for MP3/audio devices, built-in and directional microphone amplification. Tested to SNR 29dB (EN 352-1:2020), NRR 21dB (ANSI S3.19-1974), CSA Class B.
Specifications
| Controls | Adjustable headband, folding design, AUX input and 3.5mm connection cord for MP3 players/audio devices |
|---|---|
| SNR (EN 352-1:2020) | 29dB |
| NRR (ANSI S3.19-1974) | 21dB, CSA Class B |
| Additional EN test data | EN 352-6:2020 -6.4dBV (478.6 millivolts); EN 352-4:2020 H=100.6dB / M=100.2dB / L=93.6dB |
| Sound processing | Bi-directional microphones amplify range commands and other ambient sounds to a safe 82dB level; approx. 150 hours battery life on AAA batteries |
FAQ
What do the EN 352-4/352-6 numbers mean?
EN 352-4 covers level-dependent (sound-restoration) earmuffs and EN 352-6 covers earmuffs with electrical audio input — these are the specific European test standards for this earmuff's electronic amplification and AUX-input functions, separate from the base EN 352-1 passive attenuation rating.
Does this use AAA batteries or a rechargeable battery?
AAA batteries, rated for approximately 150 hours of use per the catalog — different from the rechargeable lithium battery used in the EM-9011 and EM-9001 electronic earmuff families.
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Last updated: Sat Jul 18 2026