LG P500 Optimus One with Android OS, Wi-Fi, GPS Navigation, Stereo Bluetooth, 3 MP Camera and Video Recorder - Unlocked Phone - Black - International Version No Warranty This unlocked cell phone will work on GSM carries like AT&T and T-Mobile. Not all carrier features may be supported. Unlocked Quad-Band cell phone compatible with 850/900/1800/1900 GSM and 3G WCDMA 850/1900/2100 Mhz frequencies plus GPRS/Edge data capabilities. 3.15 MP Camera with 2048x1536 pixels, autofocus, Geo-tagging and Video Recorder; Wi-Fi 802.11 b/g, Wi-Fi hotspot; Bluetooth v2.1 with A2DP, EDR; microSD, up to 32GB; Stereo FM radio and GPS Navigator with A-GPS support. Android OS, v2.2 (Froyo) upgradable to v2.3; Social networking integration; Google Search, Maps, Gmail; Digital compass; YouTube, Google Talk; Document viewer; Organizer; Voice memo; Predictive text input and Media player. Talk time up to 8 hours - Standby up to 550 hours. Unlocked cell phones are compatible with GSM carriers such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint. This cell phone may not include a US warranty as some manufacturers do not honor warranties for international version phones. Please contact the seller for specific warranty information.