Owned 2 pairs, both lost sound in less than a month
G. Mapes, Amazon
27 February 2012
Summary: I owned 2 pairs of these and both broke in less than a month! The second pair in less than 2 weeks! They both ended up having the sound go out on the left side bud. I wore them to work out/run with. So I did sweat, not sure if that's the problem?
Summary: The configuration of these MDR-AS40EX earphones is excellent. They are comfortable and block out all the annoying noises of everyday life in the city - people talking on cell phones on the bus, extremely loud sirens, car horns, advertising, etc.
Summary: I've had two of these earphones. The sound is good but they don't last. On both sets I've lost sound in one earbud over time. The first set lasted about 8 months but the second set only lasted less than 2 months before the left speaker stopped working.
Summary: I bought two pair of Sony MDRAS40EX headphones at the same time because they were 30% off. There is a reason these headphones have only a 90 day guarantee. They will fail between 4 and 6 months. The first pair's right earbud went out at about 5 months.
Summary: I used these on treadmill runs and while lifting at the gym. they were great in terms of sound quality...for about 4 months. Then one earbud stopped working! Coincidentally, the manufacturer's warranty is only 90 days. BOOOOO! I expected better quality out of Sony..
Summary: Pro's - Comfortable fit, short cord works well with MP3 Player on arm-band, extension cord works well, 3 different sizes of ear loops and ear cap covers. Con's - Weak audio quality. In comparison, their quality is lower than Sony's $9.99 ear buds. Too costly for the quality you get.
It will not last a month if you exercise with this unit
19 March 2011
Summary: Prons: The ear loop is the only feature of positive merit. It worked well to keep the ear piece in place during moderate exercise. This is the only reason why I give it 1-star. Cons: Model is defective. I've had three units go inoperative in two weeks or less of use.
Summary: I got these when they were $40. The design seemed like it would be good for running with the ear hooks and the the in-ear headphones tend to sound really good. Great combination, right? Wrong. The worked well until I started to sweat.
Summary: These sony MDR 40ex earphones sound horrible. I bought them for gym use as none of my in ear phone stay in once I start sweating. These will likely stay in place with the adjustable over the ear design, but if you care anything about sound quality you will not be happy with them.
Summary: I have had 2 pairs of these headphones and both times they lost their sound, they start out great and after a couple times using them the volume gets really soft and can't be brought back. I cannot figure out why!