To collect everything and get platinum trophy it can take upwards to 40 hours. While my AKG K701s work with my Samsung Galaxy S4s volume set about half way, I get much better results when using the headphone circuit of my 1980s era Harman/Kardon integrated amplifier (80 Watts RMS per channel; frequency response 4Hz to 140kHz +/- 0dB). Exactly as shown. Fit fairly well but I did end up with significant blisters on several toes. The sound that comes out of these is quite impressive. You can see the LED light and it comes with a super nice key ring. Super flimsy, sad boxes that are horribly shaped and won?t stack. Easy to take apart to clean, over all a great product! I would recommend, and if you have king-size comforters, and sheets to store you are in luck because they are big enough for that. However, IF you wish to put an insert, that has a gel sole--which adds more thickness and comfort to a foot issue, THEN, order a half size larger.