WARNING: DOES NOT WORK WITH IPHONE
935136
I have an iPhone 3GS with the latest software and this headset has terrible call quality.  It is hard to hear anyone on the other line because of static.  I contacted the manufacture and they admit there is a known static issue when this headset is used with the iPhone and the latest software.  Furthermore, they do not know if or when this will be fixed and placed part of the blame on Apple.  In other words, if you have an iPhone with iOS 4 (as most people do since this OS is a must have) do NOT buy this headset.  It's defective.
2939785
Simply does not work with iPhone 4 or iPad2. The app says it's connected and everything is working but sound will only come out of the iPhone's (or iPad's) speaker.  I'm pretty tech savvy but if anyone thinks I'm doing something wrong please feel free to correct me.
4189002
Receive message stating that accessory is not supported. Constantly have to plug and unplug from my iphone to charge.
96274
This Bluetooth isn't compatible with the iPhone.  This is my second attempt with the same model and it's become clear the two don't communicate well with each other.  Randomly the sound will move from the Bluetooth to the iPhone even though the Plantronics is still connect and available to use.  I have to constantly manually pick the Plantronics device and it's a problem, particularly on business calls.  I blame Apple for not playing well with others as my friends with this same device on different smartphones have had great success.
2551967
DOES not work on Iphone 6, only on an Ipad.  I should have known the ad was pretty vague about which smartphones it would work on.  It is WAY too expensive to not work on everything you have.  I'm pissed.
20553
Very disappointed to find that this is not compatible with my iPhone 5. However, I bought an audio to audio cable and the stereo can transmit audio directly from my iPhone that way. Still just a bummer about the iPhone incompatibility.
2236062
This product is not compatible with the latest iPhone iOS. It will not adjust the volume low enough to be able to listen to music comfortably. LG states they printed the box showing iPhone compatibility before the latest iOS was released. You'd think they'd communicate this by some other means.
3196511
Very disappointed with this toy.  They clearly advertised that the toy works with Iphones and Androids.  Well it doesn't.  It only works with Iphones and what they didn't say was it has to be an IPhone 5 or 6.  Instructions are poorly written on how to use the toy.  We had one IPhone 5, but still was unable to make the toy work properly.
3114030
Does not work on iPhone.  The following message appears when connecting via this extension cord: "This accessory may not be supported." Will be returning item if the cost of the return is not more expensive than the item itself.
1690396
This product is not compatible with iPhone 6... It always says this accessory is not an approved device...
798197
USB doesn't work with new iPhone & iPad. After buying it, pluging in my iPhone, getting the message "NOT CHARGING" and spending  a hour on the phone with 4 different people at Belkin, someone finally told be that the item was not strong enough to charge the iPhone 4s or the iPad 2. Don't buy it if that you have these devices.
325472
Doesn't work with iPhone's at all. Generates a message saying the accessory isn't supported and doesn't provide power as advertised. Avoid as you're just wasting your money.
1044339
Bought two packs of these and will be returning them. Despite claiming to be MFI Certified (Made for iPhone) these do NOT work on iPhones or iPads, giving the dreaded "Unsupported Accessory" warning and fails to charge either device. So: DO NOT BUY.

It's a shame as I love Anker battery packs, and thought these would be a sure thing being MFI and Anker branded. Unfortunately not.

EDIT: Anker were fantastic and proactively offered to send me replacements, without even requiring me to send the original ones back  however these were exactly the same and I've given up on them. I will still highly recommend the Anker battery packs (I've even bought a fourth one for my collection just last week!) as well as their USB charger plugs  just not their lightning cables.
1088691
Does not work with iPod. I tried it every which way.
4574452
These adapters do NOT work with any of iphones, this is false advertising to say they are compatible with iphones, ipads, etc..
4142437
Don't buy this unless you have an apple products: on the package it says "made for iPhone, iPod, and iPad".

The volume up and down button will NOT work for android products.
968787
Product was great except it wasn't compatible with iPhones. And that was not specified in the description.