I love that the mic is detachable, and the in-line mute and volume controls are great for conference calls. Obviously the HD660s have to be used with a separate desktop mic. They dont have the greatest sound, but what do you expect for such a low price? They do the job for me just fine. Yeah lights and led stuff is bright and always changing colors and so on. We just got back from a trip to Greece and let me just say, this was the BEST purchase I made for our trip. The 5’s are a men’s 5 and the 4’s are a woman’s 6. Well-made good buy Just clip one end onto the light, wrap around any bar on the bike and affix the other end to the plastic lip on the clip. Didn’t have a single problem with even the slightest bit of bowing from transit. but the lg g4 is a horrific phone in terms of its audio hardware.