I didn't need these headphones. Not at all. But they were cheap, real cheap. They set me back €16,99. And that's cheap.
The form factor reminds of the AKG K450. The build is identical. The shells are different and these come in a bright shiny silver.
Apart from that the headband cushion is missing on the K420 and the cable is not detachable. You do get an inline volume control however.
Also, it comes with a semi-rigid case. So, it's a complete package.
Because it's so similar to the 450 the fit is the same. The headband is missing, but you won't really notice that. I only noticed it when I hung the phones for storage.
So is it all good? Well, no. It's a cheaper headphone and for that you pay the price. Or you payed the price. Anyhow, it's not as good as the K450.
The headphone is nice and fast. The bass is there, but not in abundance like more 'fashionable' headphones out there. Mid are okay and highs are good in detail.
That's what you'd expect from AKG, a more or less realistic presentation of the music. The main problem with the headphones is when the music gets 'big'.
When you play S&M from Metallica (maybe not the best example for a record) it is a real treat to listen to. But when the orchestra plays and the music swells the headphones loose track and the music get's to crowded. They just aren't able to reproduce. Same goes with better recoded classical pieces. It just doesn't cut it.
So should you get it? If you tent to use it as a low-cost commuting headphone then by all means, get one. just don't pay top dollar for these headphones.
Don't get me wrong, I don't regret this purchase, they are great on the train where the noise interferes with the music anyway. They are also very nice to use with portable game systems as the Nintendo 3DS.