Summary: Volume is low, bass is minimal and they do not stay in my ears while running (or even in a static position for that matter), despite which ear rubbers i put on them. I stopped using these and replaced them with Panasonic ones that sounded better. Do not recommend.
Summary: The cable and jack are not robust enough. They stopped working after a minimal strain while plugged in. While they were actually working the sound wasn't anything to get excited about and they felt cheap. Over-priced and over-rated.
Summary: Great pair of headphones. Longish lead means iPhone in jeans pocket without tugging the buds out. Good sound. Best bit is the oval shaped buds that seem to fit my ears better than any others. Low fatigue for long wear times. Easy buttons to use with gloves. Play/pause/skip forward and back + volume. These replace a pair I lost recently. Recommended.
Summary: If you owned the S4 model then you'll find that this model merely has a new flat cable which feels more durable and a new soft case. at this price you get an overall quality product with decent sound specs (the result of a 8.5mm sound driver). The direct competitor is rather the Denon AH-C100 model. The Shure SE215 and the Phonak Audeo PFE 012 most probably deliver better sound but cost more.
Summary: No bass. Tinny. Volume controller is too heavy so tugs on earpieces. What's worse is when I went to return them 24hrs later, I was told that they can't be returned. "Talk to Klipsh" I was told. Terrible customer service. The CSR actually told me they don't stand behind this product.
Summary: There are numerous different types of in-ear headsets and you should be very careful to choose the ones that you exactly want. These - are in-ear and are much less cumbersome than over-ear ones, are very comfortable to wear, fit nicely into most ears, isolate you from surrounding noise effectively and have great sound quality.