Are you still worried about the video format not being suitable for your iPhone 4S and you can not watch your favorite video on your iPhone 4S? Tipard iPhone 4S Video Conerter for is especially designed for Mac and iPhone 4S users. With this Mac converter, you can convert all video and audio formats such as AVI, MPEG, WMV, DivX, MP4, H.264/AVC, MOV, MP3, WMA, MP2, FLAC, APE, OGG, AAC, M4A, WAV and AC3 and even high-definition to iPhone 4S compatible formats. In addition, you can extract audio segments from video files and capture pictures from movies to save them as PNG, BMP, JPEG.