iHearing Aid can help hearing issue people to make a conversation easily.Based on multi-tasks feature in IOS4,this APP can work in the background,so you can do anything else while it working, and It is easy to use as well, turn it on,adjust cut off level (for environment noise cancellation,"+"button means cut more off) or use default settings,then you are good to go.
This APP requires cord headphones plugged in the devices, no support for wireless headphones and Bluetooth.
This APP is compatible with iPhone 3GS/iPhone 4, iPod touch 3/4.
This APP requires IOS4 or later.
For better performance , please dont cover mic.