MobileSweets is your source for finding all the hottest new ringtones. We make it easy to find ringtones for your cell. Simply choose your cellular carrier, T-Mobile, Verizon Wireless, AT&T Wireless, Nextel, Boost Mobile, Sprint, Alltel, Cellular One, Dobson, or Other Carriers. After choosing your carrier, enter the cell phone number on which you would like the ringtones then verify the PIN number which will be sent via text message to your phone. Now you can start downloading your ringtones. It's really that easy! What is the difference between Monophonic, Polyphonic and "Real Tone" ringtones? Monophonic: The 1st generation ringtone type that can only play one note at a time. Polyphonic: Newer technology that can play several notes from different instruments simultaneously. Depending on the phone, a polyphonic sound can play up to 128 notes at the same time. If you ever heard a MIDI music file, that is what it sounds like. RealTones: Also known as Real Sound Ringtones, Music Ringtones, Voice Tones, TrueTone and some others. While polyphonic technology has a broad range of notes and instruments, it still doesn't have capability to sound like real music with voices and original instruments. This new generation of ringtones known as RealTones are simply music files such as MP3s that play on your phone. You can set the file to play as a ringtone or listen to it at any time you wish. Ringtones offered through RingtoneMatcher are high quality RealTones. You will want to check your cellphone to see what types of ringtones are compatible it. The newer phones usually offer more types than the older models.