Hi i am new to this forum but i read alot of reviews here and i feel that the reviews here are really reliable because some users here could be audiophiles. i am not an audiophile but i know decent headphones i have the Sony MDR-XB700 but those are for home and i was looking for IEM for outdoors. i saw alot of IEM but a few that caught my eyes were the Sennheiser CX300-II Klispch Image S4A (android cause i have an HTC Sensation) and lastly SMS Audio street by 50 in ears (i am considering these cause i can get them new for 85usd) i listen to all kinds of music so i would like a flat line response by is sensitive to amps in the sense that i can change it to suit the music. Which of these should i choose i live in europe btw. Thx for your help i have been debating between these 3 feel free to recommend others Thanks again.