GPS senior phone gps tracker GS503 for old people with emergency calls and tracking funtion 7days long standby

• GPS+GSM+GPRS wireless network
• GSM 850/900/1800/1900 MHz Quad-band
• Support GPS+LBS positioning function
• 1.7 black & white screen;
• Support 3 family numbers, 6 speed dial numbers;
• Support SOS emergency call
• Support Multilanguage(English; Spanish; Russian; Portuguese; Italian; Dutch; French; German)
• Sliding key lock for flexible operations;
• Electric torch
• FM radio 
• GPS locating function
• Big font
• Buttons speech
• 7 days long standby, 
• Louder volume
• Getting location information via SMS command or platform;
• Platform support for multiple functions