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Dual-core processor. Scratch-resistant touch panel. Multi-touch, up to 4 fingers supported. Handwriting recognition. LED flash, autofocus, face detection, geotagging, HDR, image stabilizer, video stabilizer, Sony Exmor RS for mobile. Accelerometer, ambient light sensor, proximity sensor, magnetometer. Networks (C2104): UMTS HSPA+ 850 (Band V), 1900 (Band II), 1700 (Band IV), 2100 (Band I) MHz; GSM GPRS/EDGE 850, 900, 1800, 1900 MHz. Networks (C2105): UMTS HSPA+ 900 (Band VIII), 2100 (Band I) MHz; GSM GPRS/EDGE 850, 900, 1800, 1900 MHz. Music listening time Up to 43 hours 12 min. Video playback time Up to 7 hours 30 min. Battery (removable) 1750 mAh - typical; 1700 mAh - minimum. 1.2 GB firmware, plus 5.6 GB of "Internal Storage" for downloaded applications, music, pictures and movies, and some application data. ClearAudio+, Clear bass, Clear Phase, Clear stereo, Dynamic normalizer, Manual equalizer, PlayNow service, TrackID music recognition, "WALKMAN" application, xLoud Experience. On-screen 12-key keyboard. On-screen QWERTY keyboard. PlayStation Certified. eCompass. 3.5 mm audio jack. MHL (noticed only in first version of white papers).