Samsung Trill R520 was officially announced in September 2009 , Device released in October 2009 Mobile Network Support and BandSamsung Trill R520 have Mini-SIM Card Slots, and there is no 3G Network Band Support, 3G for CDMA supports at CDMA 2000, 1xEV-DO, there is no flight mode support.Device Body Design and Display Samsung Trill R520 is a Slide device and it have device dimension with 101 x 50 x 14 mm, (3.98 x 1.97