Meet the ReSound LiNX: an iPhone-compatible hearing aid that provides you with direct sound streaming and lets you personalize your experience. These hearing aids act like wireless stereo headphones. All sounds are enhanced by Surround Sound by ReSound. You can simply use this tool to listen to your music or enjoy some of the apps that the App Store has to offer.
The companion app for this gadget lets you customize your experience. You can use geotagging to have the volume adjusted automatically as you change your location. Should you lose your hearing aids, you can rely on your phone to charge it. Not sure when this will be released.