Marimba Remix of Hotline Bling. This is a cool remix to have. Just wait until you are with your friends and your phone goes off. Everyone will want to know how you got it! There are two files you get when you download. One is a .mp3 file. The other is a .m4r file. The .mp3 file is for Android phones and the the .m4r is for iPhones. Both are included in the download.