... Input & OutputIntegrated speaker and microphone, Hands-free headset capable, Bluetooth headset capable, Integrated Hands-Free Speakerphone (PDF): M3 (in cellular bands ... Profile), H.263, WMV3 Audio Format Support: .3gp, WAV, MIDI, AMR-NB, G711u/A, GSM610, PCM, MP3, AAC/AAC ... eAAC+, WMA9/10 Standard/Pro Ringtones & NotificationsRingtones: .3gp, WAV, MIDI, AMR-NB, G711u/A, GSM610, PCM, MP3, AAC/AAC+/eAAC ...