Janizz Unlocked Simple Big Button Gsm Mobile Cell Phone for Seniors.easy to Use.works Worldwide with Sos GREAT FOR SENIORS AND VISUALLY CHALLENGED (SPEAKS THE NUMBER AS YOU PRESS THEM) SOS BUTTON(CAN TEXT PRESTORED NUMBERS AND ALSO AMBULANCE SIREN TO ALERT PEOPLE AROUND) WORKS WORLD WIDE Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin. FM RADIO,BLUETOOTH,COLORED,SD CARD COMPAIBLE,LCD SCREEN,BRIGHT FLASH LIGHT,DUAL SIM (IF YOU HAVE TWO NUMBERS) & MANY MORE FEATURES..CHECK DESCRIPTION FLSH LIGHT (SEPERATE BUTTON ON THE SIDE)