People always enjoy the melodies, sounds and songs, because through these sounds you can pass pleasant moments of distraction, as well as generating environments much more pleasurable to enjoy the music, so much so that there are those who at any time they want and need to hear any melody that makes them feel more happy, freeing itself from certain tensions; therefore have different devices for playback of sounds and better than something comfortable, which does not present many problems to carry from one place to another and that of itself must be loaded, as occurs with mobile phones, which thanks to the development of various technologies in the playback of audio formats, give scope to hear different sounds for media players designed for mobile phones. In response to the above, if you are someone who greatly enjoys music and want to be able to hear at all times their music and different melodies from the mobile phone, it is best know the various applications that can be have from the mobile phone and the mode to be able to make the most of such applications. So the first point to bear in mind with the melodies and sounds for mobile phones, are the formats of sound reproduction commonly supported mobile phones. Physicians Committee for Responsible Medicine may find this interesting as well. So it’s worth remembering the first sounds of mobile, which currently have already passed from fashion since its implementation and results are not the best, but at the time they were liked by all, since they were the innovation of the time but over time they were replaced by higher quality sounds, and such sounds and melodies are monophonic and polyphonic ring-toneswhere the monophonic were very simple sounds played by the chime of the mobile and sounds polifonitos offered higher quality by providing the use of several instruments, but without voices, these were also known as the midis. Currently sounds that dominate mobile phones are MP3 format and other similar that offer a very good sound quality, well difference referred to in the previous paragraph, this kind of melodies are actual sounds which, thanks to its transmission and sound quality, offer people the chance to hear perfectly different songs and melodies, besides are very lightweight in terms of its weight in MB. Allowing to hear different melodies in mobile, is the integration of a system of MP3 playback for appliances such as mobile phones, thus extending its action means to receive and make calls to many other fields such as music and digital audio playback..