Volume Amplifier is a new plug-in from the jailbreak community that can increase the hands-free volume to 200%. This plug-in does not modify specific system configuration files, but controls the audio flow in a special way to achieve the effect of increasing the volume.

The use of Volume Amplifier is very simple. After the user installs it, he only needs to use the volume key "+" to adjust to the highest volume during a hands-free call. The words "Press + to amplify" will be displayed. At this time Continue to press the "+" key, and a volume bar will appear at the upper and lower ends of the original volume bar, filled with colorful colors, and the volume will gradually increase with the percentage above the Hub. However, the Volume Amplifier only works for hands-free calls and has no effect on other volumes such as music.

Currently, this plug-in only supports iPhone 5 running iOS6 or above.