Good Protection but low quality extension cable sacrifices audio for water tight integrity.
921225
I like the case for protecting my iPod touch. It's very rugged and the touch works very well through the front screen. The extender audio cable is not high quality. From the start it made intermittent connections affecting the sound quality. It became progressively worse until I decide to eliminate the need for that cable by drilling out the threaded part of the case. I use high quality ear buds so it made no sense to sacrifice sound quality for complete water tightness. I can plug my bose directly into the iPod but I lost the O Ring seal and likely the plug isn't waterproof any longer. To me it was a fair trade off as I never intended to submerse it anyway. I just wanted to protect my iPod while running and working out at the gym.
1571431
This cable reduces the audio signal by well over 80%, which is rather odd given its short length. Maybe the one I tested is defective, I don't know, I ordered 2 but did not open the second box. I'll just try another manufacturer.

Here's the audio sample: https://www.dropbox.com/s/47r6a4759h55f7a/signal-loss-amazon.m4a?dl=0
2406544
I love Lifeproof, and always protect my phones with LifeProof cases. This case is a great color and came exactly as described. On testing, it didn't let any water in, and it's been protecting my phone for several months now with good result.

My complaints with LifeProof cases are:
A) The sound on/off toggle switch ALWAYS falls apart after a while, rendering the case non-waterproof
B) The charging port is *just barely* too small to fit any charging cord except a brand-name Apple product, so when my Apple cord stopped working I had to order another one at full price and have to either take the case off or forego charging if I'm using any other cord.
C) The headphone jack requires a special (and very annoying) extender to use, forcing you to take the case all the way off if you want to use the headphone jack but have forgotten to bring the extender along. By pushing in so aggressively, use of the extender must have damaged some of the metal in my phone's jack site, too, because when I try to use a regular headphone jack with the case off I either get no sound, muffled voices, or sound in only 1 ear. I've gotten around this whole ordeal by buying wireless headphones, but they were expensive and I'd prefer to have a working headphone jack
4389976
The actually quality of the materials of this item is pretty good.
That said, the connection areas are poorly designed, IMO.
I looked at this part of the audio jack again, and I can see that the way the case is designed does indeed protect the jack interface. so the interface works well with straight headphones inputs. The Apple ones that come with the iTouch I got holds the jack securely, but angled ones have a hard time going in and connecting. The sync cable input fits, but the hard cover itself kind of covers the input so it makes it a little harder to unplug when combined with the soft cover. The third thing is related to the on/off button on the top of my iTouch 4 player is recessed just enough to make it a chore to simply turn on or off, if you use it that is.
Please note, this was my experience only. Maybe other covers may be different.
1657558
A good quality case

Pros
-supports new iPad speakers
-good protection
-attractive
-small size

Cons
-doesn't offer full protection against drops
1990939
It's easy to connect to, easy to hook it up to speakers, and plays audio as needed.

The audio quality is poor; it exhibited a near-constant distortion at mid and high frequencies (e.g. static).
36226
I purchased this case because it was the better option for me over the Otterbox (too bulky and heavy).  I initially liked the case, but quickly found it cumbersome to only be able to use the extension cord for earphones/aux plugs.  Also, I was really annoyed that I could only use the original lighting charge cable because everything else had a plug too big to fit through the case's port.  The final straw was when I had trouble switching my phone's ringer to vibrate.  It was fine at first, but over time, it stopped working properly - so much so that the rubber ripped off on the outside switch.

I had heard about some complaints regarding sound quality where the case distorts people voices randomly when you have the phone to your ear.  I brushed it off because I mostly use a headset, but did notice it when I don't.  Not a huge deal, but pretty unexpected when it happens.

PROS - very sturdy, waterproof - great for active runners and outdoors folks

CONS - pricey but solid, extension cord a must for earphones, small charge port, voice distortion.

Overall, I can't say that I would recommend this case unless you are in the elements all of the time or have a job/hobby that requires extreme phone protection.  The average person can get by with a case much less expensive and more user friendly.
783584
Distorts sound, hard to hear and people say I sound like I am in a tunnel. Protects phone well.
2589700
Update: Per Zeskit's response below, do NOT use this extender with headphones that have an inline mic. That's apparently the problem I had. They were kind enough to refund the cable though, so perhaps I'll find another use for it someday, on a mic-less headset.

It gets points for build quality - you could probably roll over it with an office chair quite a few times and it'd be just fine. In fact, it's so sturdy that the cabling is pretty stiff.
The main problem I have with it is that it sounds terrible. I played a song using headphones plugged directly into this extension, and played the same song with another brand's extender, and also played the song normally. The Zeskit extension made the sound incredibly muddy - ridiculously high mids and bass but barely any treble. I don't know how a simple extender is messing up the tone so badly, but I won't be using this one anymore.
1215313
This is a very solid and protective case. It has some design flaws in my opinion. The covers on the on/off and volume buttons are so thick making it hard to depress them. When attempting to connect the phone to my stereo with the RCA cable the opening surrounding the input was too small and I had to pull back the cover a little to completely expose the hole. This opening works fine for earbuds.
3806377
Excellent quality materials and construction but poor design from an acoustic engineering standpoint.  Fortunately it is an easy fix.  These speaker adapters consists of two parallel plates connected by rectangular riser blocks.  There are gaps between the riser blocks that allow longer frequency sound waves (your bass) from behind the speaker cone to interfere with and cancel out the sound waves formed at the front of the speaker.  My fix was to simply fill in these gaps with a quality construction adhesive.  Overall richer and louder sound after filling the gaps and no more lost bass.
530485
Seems to be a good durable cable. Works just fine. My chief complaint is that the audio cables are quite short. They measure a mere 8 inches from the fork. This is not enough to connect to my laptop without some creative wiring.
3062481
This is my second Incipio product.  Bought this because of the belt clip.  However, discovered that I can no longer plug my AUX or external microphone in.  That's very disappointing.  While it protects my Iphone 4S really well, I can only give it 3 stars.
4930026
A decent pair of speakers with good sound quality (at reasonable volumes) for a low price.

-1 star for length of cord. Speakers cant be placed more than ~2ft apart so they are almost completely blocked by my monitor, and need extension cables to move them elsewhere or higher on my desk due to the short USB/audio cable to the desktop.

-1 star for very low quality at higher volumes. They work well for me when I'm sitting right at my desk, but will not be able to fill a room with sound.
792513
I Bought these headphones based on many reviews but was disappointed in the lack of attenuation they provide from external noise created playing recreational drums. Even though they cover the ears entirely and have a high rating of up to 32db sound isolation they were surprisingly less effective than my 19db rated CAD DH 100's. The Sennheiser HD-280 PRO headphones are very comfortable and seemingly well made but sound quality and attenuation is of a lessor quality than I expected for the purpose I use them for of isolating external sound while maintaining good sound quality at very low levels so as to protect my hearing from further damage which has been compromised from loud noise environments.
3599089
I like and admire the sleek thinline design of the case and it is durable as well as WATERPROOF. Thats where the problem is!!!!! Unless you are truely wireless (IE Bluetooth) the sound quality is very poor on the receiving end as well listening end. Video quality sound is very poor as well and there is no way to make the mike wireless for that. I found it to fit in my belt holster as to where the OTTERBOX would not so thats a plus.
Overall the protection of my phone is there. But I do not like having a earpiece sticking in my ear 24/7 just in case I receive a phone call. So if you get one for the protection and don't mind the ear piece sticking in your ear all the time. I say purchase it. But if all you want is protection and not loose the quality of your calls you will have to do some modifying to the case and give up waterproof protection.
I recommend buying the warranty for the phone and getting a case that suits your needs instead of spending $100.00 or so...Thank God that this one was half price compared to the other retailers.
4085740
Worked well as far as protection but if you like being able to access things like charger and headphone ports without having to take the case off. Then this is not the waterproof case for you. It's also difficult to seal completely