WinX Free MP4 to 3GP Video Converter - Version 4.1 WinX Free MP4 to 3GP Video Converter is a free video converter for converting MP4 video to 3GP format. Armed with a user-friendly interface and fast speed, it makes MP4 to 3GP conversion routine quite simple. WinX Free MP4 to 3GP Video Converter is an excellent and easy-to-use video conversion program that converts video formats at fast speed and high quality.Key Features:Perfectly convert video from MP4 to 3GPSupport batch converting mode Super fast video converting speed, up to 300%-500% real time Easily to take screenshots from video file Excellent video/audio quality Easy-to-use and 100% stable Fully control output video size and quality All video/audio parameters adjustable for users to optimize video quality