Summary: I use these when I swim and they work very effectively under water. I listen to "books on tape" while swimming and these work very well. I swim for 45 minutes to an hour and they give little trouble.
Summary: I use my earbuds only during my running workouts. I have used them about 18 - 20 times and the wire shorted out so one earbud has no sound. I love the way the fit and sound but am dissapointed in their short life.
Summary: These fit me well and stay in while lifting and running. However, they sound very tinny and cheap compared to my previous pair of this style earbuds made by a different manufacturer. I do not recommend.
Summary: Bought 2 sets of these and first set lasted 2 months before 1 earpiece stopped producing sound. The second pair has lasted until XB1-BK-X Amphibx let water into my iPhone (05/05/2014) and destroyed my 64Gb iPhone 5s that I just bought 2 months again. I would say stay away from H2O Audio.
Summary: I have purchased 3 sets of earbuds from this company, the blue ones failed in one side after about 3 weeks. This particular model black, came apart where the 2 piece bud has a seam. I glued them together then the wiring failed .
Summary: My $3 bargin bin headphones work and sound just as well. I had two pair of these die. Submitted a warranty form on the H20Audio website twice and never heard back. Talked to a customer service rep who was really nice and said no problem for warranty, but that never materialized.
Summary: I bought this earphone for my wife. She swims very often and lost the originals. Of course, she requested a replace and requested the same one, because she is very pleased with them. She has used several others, but this fit her the best.