Form Factor: Smart Phones Wireless Radio: GSM 850 / 900 / 1800 / 1900 MHz UMTS 850 / 1900 MHz Compatible Carrier & Service: AT&T, AT&T 3G, T-Mobile, Rogers, Fido Wi-Fi Support: 75-205-300 Data transfer: GPRS, EDGE, HSDPA, WiFi GPS Integrated: A-GPS support; Nokia Maps Audio: Integrated handsfree speakerphone Music player Media player Music playback file formats: .mp3, .wma, .aac, AAC+, eAAC+ Audio streaming formats: .rm, .eAAC+ Customizable ring tones Message: SMS, MMS Multiple SMS deletion Text-to-speech message reader Distribution lists for messaging Instant messaging with Presence-enhanced contacts