Very good headphones if you are looking for basic and reliable functionality
Very good headphones. Light, great battery life, easy to wear. Have been great for traveling especially. No issues whatsoever. I tried few others before but I think I finally found what I needed. Adequate sound quality.

Good Sound But With Some Issues
I was in need of a new headset and bought 2 different sets – this and the Tonemac N8s, both were in the under $30 range. There is a more detailed review for the Tonemacs on that product page but I will touch on a few points for both in case others are comparison shopping.The Good:1) The Sony headset has an exceptional sound at this price point. Solid bass, clear vocals and treble, no muddled sound. You can distinctively hear individual instruments and vocal tracks, sounds are crisp and clear. They sound higher end than the price point and significantly better than the Tonemacs.2) The Sony buds connected to my Bluetooth immediately. I had no issues with the connection dropping which was not the case with the Tonemacs. The range is decent as well. There is a very clear female voice that advises the power status and battery level, connecting, etc.3) The Sony earbuds are very comfortable in the ear. There is a left and right side. They come with 3 pair of tips, small, medium and large. They aren’t noise canceling but do block most outside sounds.4) The volume range is quite good and clear at even low levels. This is a significant improvement over the Tonemacs, that had to be at nearly full volume but still had muddled sound.5) Battery life appears to be quite good and 25 hours seems to be spot on. The Tonemacs boast about 40 hours.The Bad:1) I’m not a fan of the multi-function buttons on just about every electronic device these days. I prefer separate track select buttons but these are combined with the volume up/down buttons however they do work well. You hold the volume up or down button about 2 seconds to move to the next or previous track. It chimes when it changes the track, which is a nice feature. The Tonemacs were a hot mess, flipping through multiple tracks, etc.2) The flexible neckband is a pain. It slides and flops around. If you are wearing these while exercising, they will eventually fall so far to one side that it pulls the earbud out. I have found putting the controller on the right side and then crossing the earbuds in the front of your neck (so the bud on the right side is in the left ear, etc.) is really the only way to keep them in place if you are moving around. They should have included magnetic tips but apparently Sony had to save a few pennies.3) I was shocked that a charge cord isn’t included. I mean, come on. It isn’t a huge deal to me because I have several C cords but that may not be true of everyone. I don’t think people should have to purchase an additional item just to get the product to function. These cords are inexpensive, which is all the more reason it should be included. Ridiculous and so petty and cheap on Sony’s part. Just an FYI in case anyone is wondering – you can’t listen and charge simultaneously but that is the case for most headsets.4) The build quality is decent but very basic, no frills. The absence of magnetic tips is annoying because they could help keep them from falling off. The plastic cover over the charge port feels extremely fragile but the cords seem to be decent enough. The headset is lightweight, but doesn’t feel cheap or flimsy. Build quality is on par with the cost.Overall, the sound of this headset is what makes it stand out. Everything else is really quite basic. To me though, the sound is what matters and these sound WAY better than the Tonemacs. Just make sure you have a C charging cable or you won’t be able to use them.

Tive dois WI-C200 que duraram 4 anos, ótimos, e acredito que só duraram 4 anos porque era usado no sol e no suor. Como o WI-C100 tem certificação à suor e respingos acredito que durará mais tempo. Comprei a versão chinesa, fiquei em dúvida se era original, mas veio com certificado e o app “headset da Sony” o reconheceu, pude até mudar o idioma de chinês para português Brasil, além de personalizar o equalizador.Ele não possui as cabeças imantadas, o material é mais flexível que o WI-C200 e a bateria dura 1 semanaO isolamento de som externo vai depender da borracha que usará, vem com três tamanhos diferentes.

Som e imagem é Sony. Sempre excelentes produtos desde os mais básicos, por isso, sempre mais caros que semelhantes. Tenho também um WF 1000XM4 perfeito.