Archos 50 Helium+ was officially announced in June 2015, Device released in July 2015Mobile Network Support and BandArchos 50 Helium+ have Dual, (Mini Sim + Micro Sim) Card Slots,Archos 50 Helium+ support all GSM Based network providers. Archos 50 Helium+ mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 900,HSDPA 1900,HSDPA 2100,Archos 50 Helium+ also support LTE based 4G Networks Support