Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best headphones I have ever had

Pros:Sennheiser is a quality brand, so no worries on that aspect.Excellent detail and treble.I found it very, very comfortable.Martha "Cupcake" Sofia loves them!Cancels outside noise to a certain extent.Comes with an adapter that you can use for guitar amps, playing guitar through headphones sounds great!Not much need to adjust volume constantly.Lookin' good.Cons:Hair will probably get caught on the headband if u insist on adjusting it every 3 seconds.Bass is not punchy enough for most. *There are better headphones if you pay more money. *Is not loud enough on normal mp3 players for some. *Bass problem is fixed with some equalizer tampering, and it does not get muddy.Volume was fine for me.I'm fine with the excellent quality I get for only 20 $.This gets a 4 simply because if you pay a alot of money you will, in turn, get better headphones. However, these are budget headphones that perform like the pros.