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Ph4nt0m 09/11/2020
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Ph4nt0m 09/11/2020
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Ph4nt0m 09/11/2020
Le produit mérite 5 étoiles mais .... Reçu dans un petit carton qui fait pitié et tout corné mais l'article été bien enveloppé dans 2 ou 3 couches de papier bulle (OUF!). Si comme moi, vos prises électriques ne sont pas de type A, et que l'on vous fournit un adaptateur (pour moi A vers E). Jeter tout de suite l'adaptateur à la poubelle (voir le bloque d'alimentation aussi) et procurer vous un bloc d'alimentation plus sérieux. J'avais en stocke des blocs d'alimentation pour HUB USB D-Link qui font parfaitement l'affaire et largement surdimensionné. Sinon voici ce que j'aurais fait, coupé le cordon d'alimentation et soudé une prise USB pour utiliser un bloc d'alimentation standard pour téléphone (j'en est aussi des pleins cartons). Une fois la déception sur l'alimentation passé, le DDS est simplement génial. Il mérite 5 étoiles. Prises en main immédiate, des touches confortables, navigation facile, précision du signal et des mesures. J'avais peur que l'écran soit trop petit, mais non, les valeurs et indications sont parfaitement lisibles. Cependant 2 remarques : * Les beeps sont très fort en utilisation non encastré. * Un très léger rebond sur le signal carré (mais il est peut être dut à ma sonde ou mon oscilloscope). --- Received in a small pitiful and horny cardboard box but the item was well wrapped in 2 or 3 layers of bubble wrap (OUF!). If like me, your electrical outlets are not type A, and you are provided with an adapter. Throw the adapter in the trash right away (and may be power supply too). Get yourself a more serious power supply. I had in stock some power supplies for D-Link USB HUBs that do the job perfectly and largely oversized. Otherwise here's what I would have done: cut the power cord and soldered a USB plug to use a standard phone power supply (I'm also full of them). Once the disappointment about the power supply is over, the DDS is just great. It deserves 5 stars. Immediate handling, comfortable keys, easy navigation, signal accuracy.
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Ph4nt0m 09/11/2019
Interesting product. These earplugs do not cut off an audio frequency range as usual, but they attenuate the "volume" of the sounds in your environment. The first time I tried them, I wondered if he was doing anything. They must make a uniform noise reduction (bass as well as treble) of 20db (20db is huge, it's 10x less loud). Honestly, I don't know if this number has been reached, because I can still hear my environment very well. I can even follow a conversation without difficulty. In a noisy environment, personally for my ears it is always noisy. But there is indeed a reduction in noise, it should even be said a reduction in perceived sound. But I don't estimate this reduction to be 20db. However the ear is a sensitive organ and the measurement of sound a science so sense professional measuring device I can only give a feeling. I'm pretty sensitive to ears and I have very small audio conduit, it doesn't necessarily work in my favour. I can confirm without a shadow of a doubt that the wearing is very comfortable (even for my small ear holes). Removal is easy if care is taken to properly place the tab. Cleaning is also easy, just a little slow water and a gentle wipe. The box is also very practical without being too voluminous, I attached it to my keys and followed myself everywhere. I still recommend this product for people who want a slight reduction in sound to stay connected to the environment. Like in an open space, if you have sensitive ears like me. If you are thinking of protecting your ears from particularly loud noise, such as cutting tools, a lawnmower, a pneumatic or electric striker, etc... I recommend another type of earplug. The particularity of this one is not to mute a type of sound but to allow a less loud listening. That's how I use it, in the car, at the office or to sleep (less to hear my darling's snoring but to be able to hear my alarm in the morning).
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