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👂 Hear More, Hide Better — The Future of Invisible Sound
The MEDca Premium Digital Hearing Aids MZ-21 deliver near-invisible, in-canal amplification with advanced noise cancellation and customizable sound modes. Designed by audiologists, these 20% smaller devices offer up to 7 days of battery life using common A10 batteries, require no programming, and come with a 2-year warranty and dedicated customer support.







| ASIN | B07ZPGQK9Q |
| Battery Cell Composition | Zinc |
| Battery Description | A10 batteries |
| Best Sellers Rank | #247,136 in Health & Household ( See Top 100 in Health & Household ) #237 in Hearing Amplifiers |
| Brand | MEDca |
| Brand Name | MEDca |
| Color | Red, Blue |
| Compatible Devices | Music Player, Smartphone, Television |
| Control Type | Button Control |
| Customer Reviews | 3.5 out of 5 stars 976 Reviews |
| Fit Type | In-Ear |
| Headphone Folding Features | In-Ear |
| Included Components | Hearing Aids |
| Includes Rechargeable Battery | No |
| Item Weight | 0.02 Pounds |
| Manufacturer | MEDca |
| Material | Plastic |
| Model Name | Premium Digital Hearing Aids for Seniors - Invisible in Canal (CIC) In-Ear Mini Sound Enhancer Set, Near-Invisible, Noise Cancelling, Personal Sound Hearing Amplifier - Pair - MZ-21 Model Name Premium Digital Hearing Aids for Seniors - Invisible in Canal (CIC) In-Ear Mini Sound Enhancer Set, Near-Invisible, Noise Cancelling, Personal Sound Hearing Amplifier - Pair - MZ-21 See more |
| Model Number | MZ-21 |
| Noise Control | Active Noise Cancellation |
| Part Number | JH-DW3E |
| Power Source | Battery Powered |
| Product Style | Pair |
| Special Features | In Ear Design |
| Strap Type | No Strap |
| Style | Pair |
| UPC | 738246425621 |
| Unit Count | 2.0 Count |
L**E
Replacement sent from manufacturer
UPDATE. Bought a second set and they lasted 2 months . Manufacturer sent a replacement right away. Very responsive and prompt action. Thank you Medca OLD INFO. I purchased on September 19 2020. They worked for about 3 weeks and stopped working. The thing is they really are comfortable. Easy to change the volume, etc. Too late to return. I was very busy during that time period or I would have returned them for a replacement. I really like them but has to last longer. Will contact manufacturer to see if they will replace. Will add results to this review.
D**L
worthless battery
i bought these for my daughter she says they work well for her but the only attery she can find to fit them is the Medca and they are worthless. they don't even work a day .
J**H
Better than I expected
Much better than I expected for the price. The little put in pull out tab is a little to short to easily get a hold of and sometimes get caught in the battery holder door. Still trying to find the correct size fit adapter, the one that came on them tended to let them fall out and I tried the nent size smaller and am getting feedback so will keep trying until I get it right.
S**Y
Good hearing aides
They seem to work for the hubby. He says he'd get another one.
E**O
Was really hoping for better.
Constant ringing. Sometimes it is like they shut off. Pick up outside noise better than voices.
J**N
NO off/on switch.
These aids repeatedly make a loud squeal that all my friends and relations hear just fine. I don't always need to wear them so I put them in one of my cargo pants pockets or in the little soft pouch I have for them and inevitably they will close the little trap door for the batts with my movements and start squealing like crazy. I can't hear it but everyone else can. So annoying that the manufacturers decided that making the aid even cheaper by getting rid of any method that is convenient to shutting them off. Just opening the door is worthless. It's frustrating they did. A few years back, I could use my thumb and turn the volume down to zero so the battery compartment could stay closed with other aids I purchased, but these, nope, you need a magnifier and a tiny screw driver to turn down the volume. It's such a hassle that I don't. And the batts are 'captured' in such an odd way that it takes a bunch of time to remove them, that's another issue I have with them. Of course when I'm not looking at them, the battery just drops out on it's own, when I want them to shut up and stop squealing, it's nearly impossible to get the battery out. Have to get my tools. They are NOT a good aid for those reasons only. They sound okay though. One of them I cannot get to fit right in my right ear. It just squeals no matter which dome I use, unless I use one that's uncomfortable. I should have sent them back, but, life got in the way. Anyway, I won't be purchasing them again when they break or wear out or I lose them. I don't use them much anymore though so they'll probably last for decades.
R**N
These are the best amplifier you can find for the money.
Keep in mind these are not hearing aids, however they do the job. I have used two other brands ones cheaper and ones for more money (I travel a lot and keep losing them). I like these because you can adjust them to work in one ear at a time, when you find the right dome for the ends they fit very well, and most people have no idea you are wearing them. MY only beef is that I use the large dome and I cannot buy them in this size they only come in an assortment of sizes. When you first start wearing these you have a hard time filtering out noises in the background in time this goes away. These are a great product for the money
T**E
EDITED - PIECE OF JUNK
EDITED REVIEW: AFTER 9 MONTHS, THEY STOPPED WORKING. NO SLOW DRAWDOWN, JUST ZIP! CHANGED BATTERIES NUMEROUS TIMES - NOPE - THEY JUST QUIT. WHAT A BUNCH OF HOOEY. SELLER REFUSES TO SEND A REPLACEMENT. WE DIDN'T ASK FOR MONEY BACK, JUST REPLACEMENT - THEY KEEP SENDING AN AUTOMATED MESSAGE THEY ARE ON VACATION....FOR MONTHS! DO NOT BUY FROM THEM.
P**S
Ear phones
Fit nice and snug in the ear no whistling
M**H
Premium-Gerät-Kopfhörer
Das sind sehr gute Gerät-Kopfhörer zum ständigen Tragen unterwegs.
G**W
Not for everyone who can't distinguish from ambient sounds
I will have to see a hearing expert as this didn't work only heard a mumble nothing was clear or improved to what i was already hearing.
J**C
Appareil auditif
Bonjour, je suis surpris par la facilité d'utilisation et du réglage. J' ai dû juste traduire le mode d'emploi en français. Choisir le bon dôme qui correspond au mieux à l'oreille. Lors de la mise en place de la pile, introduire l'appareil dans l'oreille et après 15sec. Un bip se fait entendre. Commencer par un réglage minimum jusqu'à cela correspond au mieux pour vous. Par facilité,allumer une radio à un volume moyen. Il est vrai qu'au début,on entend bien que c'est un son numérique mais après quelques minutes,on ne fait plus de différence. De plus, l'appareil filtre les sons. Diminue les bruits les plus forts. C'est cet avantage qui me concerne le plus. Car , je ne supportais plus les bruits forts. Comme un chien qui aboie avec des aboiements aigus et forts. Je suis très satisfait. De plus, cela fait une semaine que je les porte au moins 12 H par jour et c'est toujours les mêmes piles.
L**A
Eccellente prodotto
Funzionano perfettamente
Trustpilot
2 months ago
3 weeks ago