KZ Castor in Ear Monitor Headphones, HiFi Improved Bass Earphone Sound Tunable Noise Isolating IEMs, Dual-Dynamic Driver Wired Earbuds, 2PIN-C Detachable Cable for Singers Musicians

Son definitivamente una excelente inversion, los compre para utilizarlos con mi microfono para trasmisiones en vivo, y es excelente se escucha perfectamente totalmente garantizados si te dedicas a creacion de contenido

great sound for the price. I use them to lead worship at our church and they do just the trick.

Podrían ser loa mejores InEar para bajistas, creo que tienen los mejores bajos del mercado. Calidad/Precio, fenomenal.

Great sound quality, good ear tip fit, nice cable. But the durability is lacking my ear tips ripped and the inner mesh ripped out when taking out.

Excelente relación calidad precio, el sonido tiene buena calidad.

I'll get my honest bias out first: I hate IEMs. I always have, and from my experience with these KZs, I very likely always will. IEMs are extremely uncomfortable in my ears, which have odd-shaped ear canals to make things even more annoying. Granted, I did use 3rd party memory foam tips, so that nullified the issue of these falling out, but that only introduced even more issues. Wearing these IEMs with memory foam tips felt like I was always underwater. And even with the tips, they always felt extremely uncomfortable and like they were about to pop out, even though they weren't. It's just an extremely unpleasant experience, which really bums me out because I REALLY wanted to love IEMs since I've heard nothing but awesome praise from KZ.For all of my sound testing, I used a flat equalizer in the phone app Power Amp. I always want to hear the natural sounds of the headphones I buy before messing with the equalizer. It's also a great test for Youtube videos because there is no equalizing Youtube videos without some sort of 3rd party equalizer app (that I'm not going to download or use; if I have to use a 3rd party equalizer to make headphones usable, the headphones are garbage to me).Sadly, these IEMs are literally unlistenable with certain genres of music. I am *extremely* sensitive to sharp treble sounds, like cymbal crashing and harsh high frequency sounds, making these KZs unbearable at listenable volumes.Eurobeat is completely out the window because the sounds coming out of these KZs are so harsh that it's quite literally painful, even at low volume.Technical death metal, symphonic metal, black metal, and even power metal sounds absolutely terrible with these. It's muddled, unclear, and just sounds like a cacophony of noise due to the fact these IEMs have absolutely atrocious mids. I know it's the IEMs because all the songs I test sound perfectly fine through my Anker Q20s (which I really hate for technical reasons, even though their sound signature isn't bad).Japanese hardstyle/speedcore sounds either awesome (if they are bass heavy songs), or utterly atrocious (if they are treble or mid-focused sounds); there is no in-between.Acoustics and distortionless music are actually really awesome and when there's little going on in the song, these IEMs are clear as a bell. Opeth's 'To Bid You Farewell' almost sounded better than my SHP-9500s listening through an FX-AUDIO- DAC-X6. But the absolute dealbreaker was listening to Wintersun's awesome song 'Sons Of Winter And Stars', which sounded so muddy that I couldn't even get past the first minute when the band starts playing.These IEMs are just terrible with fast music, which is the vast majority of the music that I listen to.However, with that said, these IEMs are absolutely awesome for most 90s and 2000s drum n bass and Jungle. Every dnb and Jungle song I played through these sounded awesome, and is the only redeeming factor for me.All in all, IEMs just are not for me. I have always hated them, and I wanted to try some from a company with incredibly high praise to give them a fair chance (and for good reason; KZ makes awesome sounds for the price you're paying, even if I can't tolerate the highs). I gave them an honest shot, even trying to seek genres of music I love that would work, and there are some I love that I can easily jam out to with these. It's just incredibly unfortunate that IEMs are just plain *UNCOMFORTABLE* in my ears and makes it impossible to eat food while wearing them due to the pressure to my sinus cavity; something I have no issue with at all with over-ear headphones that have been my mainstay for over 20 years.I honestly wish I had something like these growing up in high school because I went through headphones like a kid with candy. I will keep these KZs and continue to use them to see if I can ever get used to the feel. But it really does bum me out that I just hate the feel of IEMs and was straight up unhappy with the intolerably sharp highs that physically hurt my ears even at 35~40 (out of 100) volume, which is extremely low even for many low impedance headphones I have and use (for reference, a comfortable volume for me is around 60~75 in PowerAmp, and around 75~95 for Youtube videos since those are always way more quiet than through PowerAmp).Maybe I just have to go to more expensive IEMs to get something that has a sound signature that doesn't physically hurt my ears with piercing sharp highs.

Awesome for the price. A dynamic, warm, slightly bassy sound with eartips that fit really well and ear hooks that hold everything in place nicely. The adjustable tuning is nice, but I leave mine all off—the default sound is best to my ears.

Principalmente quiero indicar que esta reseña es a opinión personal, por lo cual no seré muy técnico ya que no soy experto en ello.He comprado los KZ castor improved bass version y yendo al grano quiero decirte que si eres una persona que quiere escuchar música sin gastar mucho esta es una muy buena opción. Los compre como prueba para entrar a este mundo ya que era de los que más recomendaban, su diseño me llamo la atención y vaya que no me equivoque, estéticamente son bastante bonitos y elegantes, tal vez te pase como a mi que desconfíes un poco porque su fabricante es chino, pero nada más alejado de la realidad por su precio superan todas las expectativas, su materiales son de excelente calidad además de ello son muy cómodos. En cuestión de sonido como te dije no puedo ser muy técnico porque no conozco mucho del tema pero déjame asegurarte que por el rango del precio que maneja es complicado conseguir algo igual, supera las marcas genéricas o reconocidas a mi parecer. Antes de estos usaba unos Sony WF-C500, los cuales son inalámbricos, me valieron el doble y tienen muchas más opciones pero a pesar de todo eso siento que los KZ no se quedan para nada atrás, en sonido sin duda son mejores. Al estar acostumbrado a lo inalámbrico si me resulto algo tedioso la cuestión de volver al cable pero no me arrepiento, ahora uso más estos.Mi experiencia esta basada escuchando música en el celular ya que los probé en el PC y aunque no se escucha mal si se siente la perdida de calidad. Cabe resaltar que los conecte directamente, no se si hay alguna manera de no perder la calidad o aumentarla.Para gaming fue igual, en celular perfecto pero en PC totalmente diferente, no podía saber de donde provenían los ruidos, pasos, etc.En conclusión son muy buenos, pero debes considerar que tal vez si los requieres para algo más profesional o para jugar, deberías buscar algo más caro que sea aún mayor en su calidad. Los recomiendo para alguien casual que solo busca escuchar música día a día como en el transporte público, en casa, la universidad, etc.