【實用音樂app】Video + Audio|最夯免費app-綠色工廠好玩App

Add & merge background music, song, audio to your Instagram & Vines videos or any recorded clips in Camera Roll & Photo Stream.- Background music can be started at any position of your choice- Keep original video's aspect ratio (support any ratios, especially Instagram and Vine's 1:1 square ratio)- Keep original video's quality and format (100%)- Support trimming video at start and end without losing quality- Simple, fast, streamline and straightforward