AT&T GoPhone U2800a Prepaid Cell Phone (No Contract Needed) Small Budget Phone. 4.37 x 1.84 x 0.56 (111 x 47 x 14 mm) Polyphonic ringtones, Vibration, Phone profiles, Flight mode, Silent mode, Speakerphone GSM 850, 900, 1800, 1900 MHz Calendar, Alarm, Messaging, SMS, Predictive text input, E-mail Micro USB, Mass storage device