Sony Ericsson ST17a-BKO Xperia Active Android Unlocked Smartphone with 5MP Camera, Touchscreen, WiFi, GPS - US Warranty - Black/Orange GSM/GPRS/EDGE 850/900/1800/1900. UMTS/HSPA 800/1900/2100 Internal phone storage: 1GB (up to 320MB free). RAM: 512MB. Memory card slot: microSD, up to 32GB. Platform: Android 2.3. Screen: 320 x 480 Pixels / 16,777,216 color TFT / 3 Inches Water and dust resistant. Durable mineral glass screen with wet finger tracking. HD video and Reality Display with Mobile BRAVIA Engine. Camera - 5 megapixel. Radio - FM radio with RDS. 3.5 mm audio jack. Micro USB support. Bluetooth with A2DP. aGPS. WiFi. Document readers Talk Time: up to 4 hours 53 min, Standby: 351 hours on GSM. Talk Time: up to 5 hours 31 min, Standby: 335 hours on UMTS/HSPA. Music Listening time: 25 hours Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.