Useful for movies, audio books and music. Amp Volume Booster allows you to boost the sound of music, video and audio, audiobooks, radio, voice record files. Boost volume up to 1000%. Key features: * Boost your sound file volume with one tap. * Boost your sound file volume up to 1000%. * Boost all music media volume: including audio sound and video sound. * Supports boost any audio format file. * Supports various types (mp4, mkv, mov, avi, mp3, m4a, aac, aiff, ...). * Supports import your sound file from device, other apps, or clouds. * Supports decrease or mute sound for your sound file too. * Increase video, audio, music, voice, audio book volume. Privacy Policy: https://sites.google.com/view/nnprivacypolicy Terms of Use: https://sites.google.com/view/nntermsofuse
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