3 stars for the very high price and the lack of a way to reduce the unjustifiably amplified ambient sound when not in active noise cancellation.

It is a feature that the company's regular over-ear headphones have, but in these headphones it simply does not exist.

On the plus side, it comes with a bunch of consumables and overall the sound quality is excellent.

I got them because I often do work with heavy tools—construction, farming—and with the classic over-ear headphones I get too hot, especially in the summer.

Unfortunately, very expensive for what they offer

Oti xirotero meta apo misi wra to auti ponai katholou volika noise cancel metrio pros kako min t parete

Excellent suppression of strong noise in small caliber pistols (0.22 - 9mm), rifles (G3), and shotguns (Mosberg Mav 88). And next to a tank and inside an M106 throwing 4.2 volleys, you just don't understand anything.

Where they excel compared to the up to €30 active protection headphones I have used so far is the response time after sound suppression. In older headphones, the sound was cut off with poor feedback (over 0.5 seconds. Let's not talk about seconds...), resulting in missing key words in colleagues' speech. Now I try to understand when the sound is cut off.

Very good perception of sound direction, although there is only one microphone for each ear. It won't confuse you at all.

The main advantage of these headphones compared to standard ones is that in the T version, you can connect them to your mobile phone. It has very good sound quality and your interlocutor will have no trouble hearing you at all.

The sound in music or movies (ok, you didn't buy them for that, but you bought them to be able to do that. T version!) is quite satisfactory and if you position the ear cushions correctly, you will have a good experience. Of course, they cannot be compared to headphones of similar price intended purely for a music experience. Especially in the bass, the M20T finds them dark.

One use that I had not calculated and was a pleasant surprise was running. In the area where I live, there are many stray dogs that attack. Combined with my choice to run at night, the music headphones that completely isolate you from the environment was something that always worried me. A sudden bite from behind by a dog while running is not ideal. However, with the M20T, I can listen to music and keep them open to hear external sounds at the same time! A tremendously pleasant surprise! Also, I should add that in the 5 kilometers I usually run, there has been one time when one earpiece came out of the right position (and that's because I didn't put them on correctly from the beginning) and despite the weight, it didn't move! I didn't even realize it had come out until I got home. If you understand how they should be placed in your ear, they won't move!!!

The distance you can move away from your phone is quite satisfactory (10 meters inside the house). Of course, there have been times when they disconnected while I had the phone in a bag around my waist. I believe something happens with the watch that is permanently connected. Nothing serious though. Small interruptions in sound that may stop immediately, but may bother you for a minute. I have shaken my head left and right to look at the road and they made small interruptions... I have done somersaults and they did nothing. I haven't identified the cause yet.

Before buying them, however, you must be aware and know what you want.

If you are a trainer and your main concern is comfort and appearance, it is a must-have product that should be in your collection of materials.

If you are a shooter, you will love them.

However, if you are an active fighter and your goal is to crawl like a worm in the mud and eat snakes, it is preferable to buy regular headphones. The ear-covering headphone will undoubtedly provide better isolation from external sounds, and the main thing is that there is no chance they will come out of your ears and you will have to search for them if you decide to become a ninja.

In addition to the fact that at this price (and even cheaper the M32), the headphones are fixed on the helmet, they can be connected to your wireless and if you have two-way communication.

In addition to the fact that a fixed pair of active headphones, at this price, probably has two microphones and therefore much better sound quality and direction perception.

There is no opening or closing of the volume on the M20T (unless you listen to music from your mobile phone and do it through your phone), but 3 different operating modes. One completely closes the headphones and isolates you from the environment. Despite their very convenient cushions, they do not manage to do it 100% like a simple internal ear shield for 2€. Of course, even when deactivated (for external environmental sounds), if they are connected to the mobile phone, they can receive calls or listen to music. In the second mode, the headphones open and you can hear external sounds at a moderate volume which the manual says is intended for when you are outdoors. Essentially simulates your normal hearing. In the third mode, the volume increases even more and according to the manual, it is for indoor use. There is a dramatic increase in noise and if you use it outside, it takes getting used to because everything becomes excessive. For example, if you run next to the road, you hear the cars excessively loudly and from a very long distance to the point where it becomes annoying. Similarly, in the shooting range, if there is a crowd and noise, you will prefer normal volume to be able to concentrate.

Of course, you play ball as you like.

Among the disadvantages is that there is a constant sound in the headphones, as in any similar active protection headphones. A permanent buzz that you will not pay attention to in the shooting range, but at home in absolute silence it is quite audible and annoying. Why would I put them at home in absolute silence you will say and you will be right, but I must tell you, because you might be a bit crazy like me.

Another disadvantage of the M20T is that the air is not isolated correctly, resulting in a loud whistling sound every time it blows, heard in the microphone. There are 8 small adhesive sponges that cover the microphones and do the job (not so well in strong wind), but they need attention because they tear easily (we said, if you want to eat snakes and kill enemies, you have to take them steadily!).

Sweat does not affect them at all, not only because of the construction that makes them waterproof anyway, but also because of the way they sit in the ear. Also, the very convenient cushions seal the ear and nothing passes through.

In general, the headphones are very good and I would recommend them without reservation, as long as you are sure about the use you want them for.

I should add that the box where you store them is so perfect that it really gives a breath of high quality. The Chinese have done a great job! Even the red light of the headphones does not turn off abruptly. It fades gradually in 1-1.5 seconds. It fades away...

Of course, the 100+ € they are sold for in Greece are a bit steep, but let's not forget that it is a (quality albeit) Chinese product which in "Eastern markets" does not have the taxes of Greece.

I will mention that I bought them on sale for 39€ with the regular price not exceeding 55€.