Review on Sleek Performance: Sony MDREX310LP In-Ear Headphones for Ultimate Sound Experience by Tony Baker

First, they're a little heavier than I expected, but that turned out to be a blessing; Their weight actually helped them stay in my ears and they can stay there for hours without causing any irritation or pain. Second, there's a small, hollow rubber protrusion (clearly visible on the earbuds themselves, but not visible in the product image) that you squeeze. when you put on your headphones; They stretch to keep the earbuds firmly in your ear. The idea is AMAZING except the glue used to hold the rubber in place went bad within a month and the rubber bulges became loose rubber valves. I can pull them out and see the delicate innards of the headphones, which makes me uncomfortable, but other than that they still worked great as long as I was careful not to accidentally rip/rip off the rubber pieces. And finally RATICAL Flaw: I've read a lot of controversy about unbalanced headphones (they are unbalanced: from the fork of the cord in the left earbud about 4 inches of wire and in the right earbud about a foot and a half of cord). While I can agree with both arguments, I found that the asymmetric nature of these causes resulted in ALL the weight of the cable (including rubbing against objects, physical activity, dropping the phone with the cable still connected, etc.) being carried on the cable only left earcup cable. After two years, the left earbud finally stretched too far; Now he is mute in his left ear. I can bring the noise back by wiggling the cable and pressing where the cables meet, but any further wiggling causes the left earbud to turn off again. I would have just bought another pair of these but when I bought them they were $75. I can't justify $179.95 for earbuds that should AT LEAST have a woven cord to make that inherent asymmetric wear less dangerous. This time I'm going to buy the Soniq Pulse High Performance (6Hz-26kHz) headphones for $48.89. ://www.amazon.com/gp/product/B007W8LYOY/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1 BTW: After the left earphone died, I checked what frequencies I can and could not hear through a good headphone nothing above 18kHz (I could hear up to 20kHz in premium headphones). I didn't do this test two years ago, but a good listen still sounds as good as ever (which, although it cuts above 18kHz, is still amazingly good, especially the bass). I'll test the Soniq Pulse for this range when I get it and see what happens.