Samsung Rugby III SGH-A997- Unlocked Flip Phone salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant Unlocked 2G Network:GSM 850 / 900 / 1800 / 1900; 3G Network:HSDPA 850 / 1900 / 2100 Work with: Rogers, Fido, Telus, Koodo, Bell, Virgin, AT&T, and other carriers that has same frequency as the phone. Rugged