Sennheiser CX 300S In Ear Headphone with One-Button Smart Remote - White

They sound good but are very uncomfortable for sleeping. I use ear buds to sleep to drown out the annoying snoring coming from my husband's side of the bed. I thought I would try out these Senheiser CX 300S ear buds because they were not too much more than the JBL T290 ear buds I was replacing (for the third time in 4 months making them much cheaper if they actually lasted). I paid $16.99 for each pair of the JBL's and the Senheisers were like $35 so it seemed like a good choice. They do seem durable with a metal casing (which is probably why they are uncomfortable for sleeping). They do sound a little richer than the JBL's which would have made them so much better for sleeping. I am keeping them to wear for streaming or to listen to music during the day.

After a bad outing with the Sennheiser CX 100 (they lasted 10 days before the left earbud died), I decided to try the CX 300S due to its perceived improved build quality. I've had them since April 20th, and so far, so good. The cable is thicker and the 1/8th inch plug is reinforced much more sturdily than the CX 100. These earbuds are *extremely* comfortable. You can sleep in them and you don't even notice them in your ears. Sound isolation is very good, much better than CX 100. When working out at the gym, external noise is cancelled. The bass is also much improved over the CX 100. However, I find that the mids are a touch cleaner with better soundstage on the CX 100. But overall, the CX 300S provides a more exciting listening experience, especially if you're a basshead. I'm really hoping these last. Best earbuds I've ever owned. Worth the price and the sound quality is just on another level entirely compared to the earbuds you get with phones. UPDATE: Best headphones I've yet owned. A few months in, no issues, even after being run over by a car. It doesn't feel like you're wearing them, noise cancelling is acceptable, sound quality fantastic. Only issue is the inline mic is weak at recording field sounds (it's okay for calls) and the jack comes out easy, which I'm assuming was designed this way to prolong the life of the connection at the jack point. I LOVE these. I would buy another in a second. And Sennheiser has a fan for life.

I previously owned Skull Candy Ink'd headphones, but the microphone broke. I've owned expensive Sennheiser open backed headphones that I love, so I thought I'd give these a try. First off, the construct is high quality. All of the tangible parts feel great and you know they took great care in designed them. The audio jack is skinny and will fit into your phone even if it has a bulky case. At the time, my skull candy earbuds were about $20, so comparing the audio between these and them, I'd say the Sennheiser sounds AT LEAST two times better. Like other Sennheiser products, the treble and base are well balanced, The sound comes in softer than cheaper earbuds and the best way to describe cheap earbuds is they BLURT music instead of it being carefully constructed. Not to talk these up too much because you are buying earbuds. I haven't heard an earbud sound nearly as good as a quality pair of headphones. These are great for recreational use: running, hiking, working out or routine housework. I saw a couple of reviews talk about noise cancellation. you DO NOT get noise cancellation with these. They give you plenty of tips to fit your ear as best as possible. If you have the right fit, its like wearing foam ear plugs and most of the ambient noise is blocked. However, it does not feel like foam earplugs and the ergonomic design fits the ear very well and is very comfortable. Overall for the price, it is a really great product, and if you're like me, you'll use them for years.

As expected from Sennheiser, these earbuds are of excellent quality and are extremely durable considering I have an awful habit of getting corded headphones caught on/tangled in things. The audio quality is great, highs are crisp and miss are clear, although the bass response is not as strong as I'd like. However, this is to be expected since the brand focuses on balance as opposed to bass punchiness. Comes with four different earbud sizes which I appreciate, although it would be nice to have multiples of each in case they get lost. Overall, they're definitely amazing considering the price tag.

I think the big thing to note here is how easily the earbud rotates with respect to its housing. Because it is inadequately secured, I found myself having to constantly rotate it so that it sat correctly in its original configuration. It would get messed up if the earbuds got yanked out of my ear for whatever reason (usually cat). This quickly resulted in the earbud coming entirely detached from the base held on by nothing except the two wires that send the signal/power to the little speaker in there, which inevitably led to a loss of sound, and so now it's just all the way broken. The sound was pretty good, totally satisfied with that. Just the durability is subpar. I have had a lot of earbuds in my time. These earbuds are less durable than most of the earbuds I've had. Below average durability. Given the price, I can't recommend them. If they would have lasted a year I would have had no complaints. They didn't. Therefore, this is my complaint.

I got response from sennheiser hearing that there is no such serial number in their database

Tengo poco con ellos y no han pasado por la prueba del tiempo, entonces no puedo hablar de esa parte. En cuanto a audio, suenan muy claro, reproducen todos los sonidos con nitidez, le falta un poco de cuerpo/punch al bajo pero siguen reproduciendo correctamente esos sonidos. Se compartan bien en diferentes géneros, a diferencia de otros audífonos que priorizan bajos sobre otros elementos y terminan por ser "especializados" para música electrónica básica, descuidando la experiencia de escuchar otro tipo de música. En cuanto a relación calidad-precio, los compré por la marca, no tengo suficientes comparativas con audífonos de la misma gama para hablar de este factor, pero están bonitos y tienen mejor feel que otros más baratos. Los recomiendo aunque podría haber mejores opciones, sólo que no las conozco.

the sound in the right ear goes fuzzy & static and hurts my ear as it is a piercing sound, i thought it was something i did with crossing wires or fault on my devices, but it happens on every device. after inspecting the wires i can see the wire looks bent/crimped leading up to the right ear bud. when they were packaged the wires were rolled/folded and might have been damaged in this process.

Good stuff

It broke just after five weeks, first left then right earphone! I will return it immediately but its not possible because of return policies!!!