HTC J butterfly was officially announced in December 2012 , Device released in December 2012 HTC J butterfly made under Butterfly.Mobile Network Support and BandHTC J butterfly have Micro-SIM Card Slots, HTC J butterfly support all GSM Based network providers. HTC J butterfly mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 1700,HSDPA 2100, HTC J butterfly