【實用工具app】Headphone Guard|最夯免費app-綠色工廠好玩App

HeadphoneGuard can keep you notified while you lost in music or games with headphones, it can cancel environment noises and let those signals which you care about to get into your ears, such as alarm,alert,car horn,people's shout,even conversation, announcement in a public place etc. the cut-off slider is for this purpose. It is very simple to use, turn it on,set up, then you are good to go. Based on multi-tasks feature in IOS4, HeadphoneGuard can work in the background, you can do anything else while it working, such as listening music, playing games etc. This APP requires cord headphones plugged in your devices, ,No support for wireless headphones and Bluetooth.This app is compatible with iPhone 3GS/4, iPod touch 3/4.This APP is for iOS4 and later. For better performance, please don't cover mic.