The most convenient feature in my opinion is the quick release lanyard. Wish I could reel in the wire a little behind my head as it does catch on the hoodie if Im wearing a hoodie or hood and presses a little which can be annoying if not properly seated. I like them because they dont expose too much of my toes. or if just want a really comfortable slip on! I charge it once a week. I also have the certified lighting fast dual plugs as well. I ordered and returned twice. So I glued the disk to the dash (thanks Shoe Goo! This does exactly what I needed it to do. It?s a small dot in the wave and you just pull it around with your finger to make the eq changes.