The lights are really cool and work well. Assembly of this item is an issue. logioption Poor sound and mic quality and overall product is not at all as described in description The cups themselves measure 3 1/8" across, with the actual speaker hole being 1 5/8" across and 1 7/8" vertically. logioption 5 but I followed the size chart and measured my foot and the kids size 4-5 fits my foot like a glove. logioption Also these are good for bike riding as well! I highly recommend this product I went with the black version and has a almost silicone satin texture to it. I was using a Logitech G 430 before picking this up. logioption Used exclusively with my iPhone SE 2020 and Amazon Music HD and Radioplayer iOS apps covering a wide variety of music and speech streaming. The reason I chose this one was because it came with a handy case.
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