What is the software to slow down the video on your cell phone, and is it free?

You try the acoustic shadow it, but the requirements of the phone configuration is quite high, I downloaded this in the application treasure, if the phone configuration can not keep up with the application treasure to download a editing software, but also slow playback of the movie, my cell phone software on where to download, a lot of,, learning class puzzle class parenting software games, and weight loss type of game, cell phone theme wallpaper are there, quite convenient! 0