MP3 Player/Phone Fit Chart

I am happy with the H2O ,but if you get one you have to give it time. getting the right fit is something that I still have problems with. even if they fit at first in the water does not mean they are going to fit while you swim. The ear plugs are hard to set up and you have to swim and get use to it. Fit in the ear before gettting in water and swim. I went from the x large tot he small and now i think I have found a fit. Also I use the interval for running and it works great. Only problem there is that you can not use it with all hats. The earplugs can be a little bit more durable and you have to be careful fitting them. If you are buying this product you will be happy with it but take your time in the first months of use and watch for water inside the case. (Posted on 10/10/11)

I purchased this system because I swim for a long period of time and it is hard to keep entertained. After reading the reviews I decided to give it a try and I am thrilled with my purchase. First time in I had a little difficulty with the R earphone so I lost the sound from that side, but second use I was able to get a snug fit and had music for the whole 90minutes! It was great. I would definitely recommend this product. (Posted on 10/7/11)

I originally purchased the Amphibx armband and Surge Sportwrap 2G headphone combo for my iPod shuffle and this setup worked for my daily 50-lap swimming workout... for about 2 weeks. Inevitably the structure of wiring on the Sportwrap 2G headphones would cause the wires to get pulled and short with repeated head turning when I take a breath. I replaced the Sportwrap headphones at least 3x and had the same result - I could no longer hear the music clearly. I was frustrated!

Enter the Interval 4G set. SO. MUCH. BETTER. Just based on the fact that the whole unit is on your head and there are no wires to pull and short when your head turns. I love this unit and my love for swimming and listening to music has been saved. This is a far better alternative for lap swimming than my first outing with H2OAudio, and I recommend the Interval 4G highly. The only challenge, as it is with many headphones, is to find the right earbud to stay in my ear. Just get the ProFit kit and problem solved. (Posted on 9/30/11)

I have had my Interval 4G for a couple of weeks now and so far I love it. My wife and I each use our own shuffle so we have our own music to swim to. I owned 2 SwiMP3's before the Interval and like the Interval 4G much better. I swim in an Endless Pool and the 4G really relieves boredom and lets me work out much longer and harder. My wife and I use the same ear pods with no problems. (Posted on 9/12/11)

My dog as eaten the ear plug of my first geneneration h20. I buy this new one and i think is better than the oldest. I swim 2000 yards twice or three a week in Harlem pool Marcus Carvey park, it's like a dream, and for relax at the end of my sport it's very cool. (Posted on 8/11/11)

Used the device for a month now and so far so good, easy to setup and easy to maintain. Needed to use a smaller ear bud to have it seat nice and comfortably. (Posted on 7/14/11)

I originally bought the Interval for the 2G shuffle and was severely disappointed. The latch on the case broke after 2 months of use. I received a replacement and it happened again. I thought it sounded very good but was very annoyed that the case latch kept breaking. The 4G Interval is a BIG improvement on the 2G design. The headsets have a better bass frequency this time around in my opinion and the case design is much more sturdy than before. It still takes a little getting used to as far as adjusting how the ear buds should sit in your ears to get good sound but once you find it, you are golden. I am very happy and satisfied with the Interval so far. Much much better than the 2G version. (Posted on 6/19/11)

It's pretty awesome to be able to listen to music while I swim - never thought I'd be able to do that. As far as the comfort of having the Interval sitting on the back of my head while I swim, I honestly never even notice it. After I put it on, I forget it's even there.

My only problem is the ear buds. I can't seem to find a size or a shape that works for me. I even sprung the extra $20 to purchase the "assortment" of ear buds to try, but I still can't get them to work very well. I usually swim between 2,000 - 4,000 yards in my workouts for about an hour. It never fails, the ear buds work fine for approximately the first half of my workout, then they let water in, and it's hard for me to hear the music for the rest of my workout. I've read all the tips to getting a good fit, and I still can't get them to fit right.

Other than that, it's a pretty cool product. I know for a fact since I bought mine, there's been at least one other person who purchased one, after seeing mine and asking me where I got it. (Posted on 6/6/11)

I recently upgraded from the inverval 2G to the recent 4G. I find the new 4G case not nearly as comfortable in the way it touches the back of my head ... I find it really hard to get in a comfortable position. The earphones so far are very good, except for the sound getting very soft in one ear on 2 of my 10 swims. Even with those issues, I can't imagine not swimming with my interval. (Posted on 4/8/11)

I was happy to receive my Interval 4G and find it to be working very well. Moving easily from goggles to hat is a plus.

I would have bought other products from H2O Audio over the past couple of years, but shipping options provided by H2O Audio to Canada are very limited and costly. Belive it or not USPS does ship Internationally for reasonable price. Even if you were to only offer a FedEx service at least offer International Priority, as economy ends up costing the same when you have to come up with a $25 brokerage charge at the door.

Shipping should never cost more than 50% of the purchase price...


- - Scooter - -
We're always looking into ways to make getting our products around the world easier, so thanks for the suggestion. But it's also worth noting that there are tariffs and other charges aside from just the cost of shipping alone, so those can vary greatly by country and are often out of our hands. Also, we are in stores in Canada and are working to expand those locations as well if you want to avoid shipping costs.

~Dana
H2O Audio (Posted on 4/6/11)

seriously music is the part of my life.
while swimming i able to enjoy the songs. (Posted on 4/6/11)

I had the 3rd generation shuffle and case, both of which stopped working. When I got a new shuffle for christmas I was thrilled, but disappointed to find out there was no waterproof case. I swim all the time and having music is amazing. So I am absolutely ecstatic that this case is finally out. It works great. Thanks H2OAudio. (Posted on 4/5/11)

I have tried many radios to solve the boredom problem while swimming laps. None worked. Finally, I tried the IPOD shuffle with the Interval 4G case and, at last, after 40 years, I can enjoy my two favorite things-swimming and listening to music. Thank you. H2O! (Posted on 3/30/11)

its the best (Posted on 3/19/11)

This is a vast improvement from the 2G shuffle unit. The new Surge headset is louder than the previous version and has much better bass. Previous complaints from other users were that the ear buds keep falling out. I've had no such problems. As a matter of fact, my ear canals were completely dry after swimming 1500 yds with a 200 yd IM. Perhaps my ears are such that the unit fits like a glove?

My main complaint with the 2G Shuffle Interval was that the plastic latch broke after 2 months use. I thought it was a fluke so I returned it for another. The latch broke again. It seemed the plastic was brittle. I gave it a third chance and the latch lasted 2 and a half months before breaking. I gave up and received my refund.

Hopefully, this version is much more durable. I want to be a fan of the Interval because it really is a great system. Time will tell if it holds up. For that, I give 3 stars. I'll upgrade to 4 or 5 in two months if it lasts.


- - WannaBAFan - -
We would love to hear your few month update! We did make improvements to this case to make the latch more durable, as well as other updates for performance and durability.

~Dana
H2O Audio
(Posted on 3/18/11)