Product information:
Maximum sound output: 129±5 dB
Maximum sound gain: 55dB±5dB
Harmonic distortion: ≤5%
Frequency range: 450~3500 hz
Input noise: ≤30dB
Battery: 1 AA battery
Working voltage: dc1.5V
Working current: ≤4mA
Product size: 6.6 x 4.3 x 1.6cm
Packing size: 8.5 x 12 x 3.3cm
Net weight: 29 grams
Notes:
Turn the volume to minimum before use.
Choose larger headphones and avoid whistling.
Increase the volume gradually to avoid sudden increases in sound.
If you hear howling, please check whether the ears (silicone) are suitable, and if the plug size is too tight, please select the earplugs correctly and insert them to make sure that there is no air leakage.
Keep earplugs clean
If you do not use it for a long time, remove the battery.
Specification: Sound Amplifier Earphone
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User Reviews
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$8.43| Sold:
Clifford Campbell –
From the moment I opened the box, I could tell this was quality. You can tell this was made with care and expertise. It delivers real value for the price, and I couldn’t be happier with my purchase. Five stars from me—highly recommended! I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Karen Gordon –
I’ve used this product every day since I got it. I’ve tested it extensively and it performs just as well every single time. It’s a product I now rely on daily without a second thought. Couldn’t be happier with the results. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Karla Richards –
After reading many reviews, I decided to give this a shot, and I’m so glad I did. Everything works as advertised, and it’s incredibly user-friendly. I was up and running in no time and haven’t run into a single issue. This has become a must-have item for me. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Sara Sanchez –
This is genuinely one of the best things I’ve bought this year. It’s rare to find a product that’s both high-quality and affordable, but this one checks all the boxes. Hats off to the makers of this great product. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Katherine Jimenez –
This is a fantastic product that truly lives up to its description. I’ve had similar products in the past but none of them compare to this in terms of quality, usability, and performance. This has become a must-have item for me. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Bonnie Taylor –
This item has exceeded my expectations in every way. Everything works as advertised, and it’s incredibly user-friendly. I was up and running in no time and haven’t run into a single issue. Definitely worth every penny. Don’t wait—buy it! I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Kelly Romero –
This is a fantastic product that truly lives up to its description. Customer service was also excellent, which made the whole experience even better. It’s refreshing to find a brand that truly cares. Hats off to the makers of this great product. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Roy Black –
This item has exceeded my expectations in every way. Customer service was also excellent, which made the whole experience even better. It’s refreshing to find a brand that truly cares. Hats off to the makers of this great product. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Ray Kelly –
I’ve used this product every day since I got it. I’ve had similar products in the past but none of them compare to this in terms of quality, usability, and performance. Excellent experience overall. This product deserves all the praise it gets. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.
Lynn Fisher –
From the moment I opened the box, I could tell this was quality. You can tell this was made with care and expertise. It delivers real value for the price, and I couldn’t be happier with my purchase. This has become a must-have item for me. I truly feel this was money well spent and I’d recommend it to anyone looking for something reliable and effective.