... :MSP430F149(16MHz)GSM Module:Tri-mode:850/900/1800/1900MHzTally with: GSM phase 2/2+-Class 4 (2W @ 850/ ... .5 hours)Accessoriesdevice, Connecting cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, MicrophonePorts:RES: Reset Button1: DC(12V) 2: None3: ... & better technical support.Special technical service we provide: 1, Help you setup your own GPS tracking system for free 2, Free server ...