Pros: Punchy, Great Bass, Thick cable, Efficient
Cons: Muffled highs, Build Quality, Slightly uncomfortable.
I have a quite mixed feeling about these. I own the white versions which are just the same. But I have to say, these headphones are okay for casual listening and portability. Even though they're portable, I still use my massive Philips SHP2000 wherever I go.
The build quality is cheap. What would you expect from a £10 pair of studio monitors? It's going to be mainly made of plastic. The headband is plastic and has the Sony logo and "Studio Monitor" written on the top. on the sides, it consists of plastic with the Sony logo on the driver housing. There is 2 metal screws near the hinges that hold the headband and the driver housing hinge together. The extension is plastic and it has numbers! I like it when companies add numbers on their extensions. The breaking point of these are near the headband. They're held in by a pathetic plastic nib that fits only one way inside a slot and that broke after 3 weeks. Now that part like to pull a hair strand every time I take them off. Just a bit of tape can fix it. The cable is thick and rubbery, and I prefer that over my SHP2000's very slippery cable. And the cable length is at 1.8m which means it is just 0.6m longer than average portable headphones. On the end of the cable, it has a 3.5 mm jack which is prone to fail after a year, and mine has. It can be easily fixed with another 3.5 mm jack from eBay and some basic soldering skills. There is a lot of creaking with every hinge and these rattle a lot.
Talking about comfort, these are not comfortable for extended hours. The ear pads are made of this really crappy thin plastic with sponge inside. I know this is supposed to be very cheap headphones but I've seen better. They don't feel nice when they touch your ear. Your ears start to sweat after a few minutes and it's not pleasant. The headband is okay however, as it doesn't put too much pressure on my head because it is really light. The ear cups do swivel left, right, up and down, which does make the headphones just a bit more comfortable. There's nothing much to say about the comfort. You get what you give (sometimes).
What do £10 pair of Sony studio monitors sound like, you say? Let me tell you something. They sound nothing like Sony. Sony's sound signature mainly is about the Bass and Treble with recessed Mids, but these are an exception. The sub bass is quiet, making EDM "not fun" to listen to but the punchy bass is still present. The Mids are somewhat overpowering as it makes the Treble washed out. I can barely hear claps and hihats on most of the tracks I listen to. This makes the music boring to listen to (Depending on what Genre you listen to). Vocals stand out more then the track, and if you do like vocals, this might be good with Vocal tracks. The sound signature is way off Sony's standard which is supposed to be more of a "V" shape.
In conclusion, the Sony MDR-V150 is a mixed bad of good and bad aspects of cheap low end headphones. I don't recommend them for Studio Monitoring because they don't give you the "True to the recording" sound which studio monitors are supposed to do. If you don't care about the best sound quality if your outdoors and you just need something that can be powered from a mobile phone, there a better options. The Sennheiser HD 201 are £18 and they sound more neutral but with barely any punchy bass. The Philips SHL3000 are at £20 and they sound better with deep, punchy bass and crisper treble while retaining most of the Mids, but it's your choice. I personally don't like these a lot but it's still staying in my possession because I used to master my music with these until I switched to my Philips SHP2000.