It makes a low, electrical oscillating noise. We had to exchange them for a 1. Blue in another set recently purchased) seeming to attract dust & fluff. A Japanese bride in full wedding dress is ejected from a car and abandoned in a deserted rural road bordering a lush forest. Windows sonic virtual surround is just ok but sometimes it seems quite off, but others could argue. I couldve gotten my normal size but i wonder if id have been ablw to get my foot IN the boot. Pros:-They sound better than cheaper brands out there-Comfortable fit-Good connection range when stable-Very good design for casual or sport activities-IPX7 ratingCons:-Bluetooth 4. I have included a screenshot of what I think is a good sounding EQ profile if you want to test it out. I was looking for another turntable for the longest time that would be comparable to my Technics 1200 MK5 Ive owned for 7 years. The self-contained charging bin can be used and charged at any time.