... .GPS module inside, AGPS supported. 2.SOS call button for immediate help mobile phone with original SOS and CE, FCC, RoHS :EC102 ... , it support apps on PC, iPhone, smart phone etc platform; it's specially suitable for: outworker & headquarter, tourist group & headquarter, elder 5 ... , you'll find out more after you own one... mobile phone with original SOS and CE, FCC, RoHS