Most of you may already be aware of Sony's Xtra bass series of headphones. For those who don't, well, it's a series of earphones and headphones that are dedicatedly made for bass lovers.

Great form factor; Comfortable fitting; Lightweight; Non-tangling wire; Audio quality is good

Not so great microphone; Audio output greatly varies from device to device

For its price, the Sony MDR-XB550AP delivers great sound and portability.

Sound quality; Portability; Value

Feels a bit flimsy

Researching your next headphone purchase is always an experience. With most technology, the benefits are easily quantifiable. Something can be faster, smaller, or more powerful, and there is rarely any debate on this point. It is, or it isn't. The numbers can't lie.