Headphones/Earphones Recommendation?

Hi recently I decided to purchase a pair of high quality earphones or headphones. I want them to be supremely comfortable, portable, and have impressive sound quality. I will primarily be plugging them into my cellphone, I listen to Hip-Hop, Electric, RNB, and Rock,and some Jazz.

I was unsure whether to purchase headphones or earphones because I may want to use them while in school or at the gym

If you recommend headphones please make sure the model has a detachable cable.

Please recommend a model under 150 dollars

Thanks