 
 <prompt> Jelly Bean na wetin? Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Media Transfer Protocol (MTP) na design by Microsoft to give higher-level access to a device's filesystem pass USB mass storage, for the level of files rather than disk blocks. E still get optional DRM features. MTP na design for use with portable media players, but e don dey adopted as the primary storage access protocol of the Android operating system from the version 4.1 Jelly Bean as well as Windows Phone 8 (Windows Phone 7 devices bin dey use the Zune protocol wey be an evolution of MTP). The main reason for this na say MTP no need exclusive access to the storage device the way UMS dey do, e dey reduce potential problems if an Android program request the storage while e dey attached to a computer. The main wahala na say MTP no dey well supported outside of Windows operating systems. 