... Built-in games 1 common game,java expansion Music play mp3 at background,support equalizer,bluetooth stereo Video 3GP,MP4,AVI,play in full screen ... from Mon to Sun at radom Ringtone format mp3,mp4,midi Loudspeaker Other functions MP3,MP4,,,,WAP,+,,,GPRS,MMS,,,,,IP,,,,,background sound COOLN900 Basic ...