透過 Google Play 上網購物。購買後立即可在您的 Android 手機或平板電腦上使用商品，無需煩惱同步問題。
1.0.2: Fix more FC bugs.
As the name suggest, this app will try to lower the environment noise by generating a phase-inverted wave of the noise. Due to a delay of sampling and playing(no realtime sound api in android), user will need to change the phase and amplitude manually to get the best effect.