Sourcingbay Remote Control GPS103B+ Car Vehicle Realtime Tracker for GSM Gprs GPS System Central Door Locking System, Dual SIM

Specifications
Network: GSM / GPRS
2G: 850/900/1800/1900MHz
GSM / GPRS Module: SIMCOM340
Detachable Microphone
Operation Temperature: -20 to +55 Degree Celsius
Operating Humidity: 5-95% Non-Condensing
Power Source: Built-In Battery or Car Battery
Battery Size: 1000mAh
Battery Standby: 80 Hours

GPS
Receiver Module: SiRF III
GPS Sensitivity: -159 dBM
GPS Accuracy: 5 Meters
Altitude Limit: 18,000 meters (60,000 feet) max
Velocity Limit: 515 meters / second (1000 knots) max
Cold Status: 45s
Warm Status: 35s
Hot Status: 1s

Memory
Micro SD Card up to 4GB
Alarms, Alerts, Security Functions
Central Door Locking System
Real-time Tracking
Equipment Self-Check
Remote Power Off
Audio Monitoring
Package Contents:
GPS Tracker
GPS Antenna
GSM Antenna
The Microphone
Remote Control
The Relay
2x Relay for Central Locking
Wirng
User Manual
1 x Sourcingbay Free Gift
NOTE:
1.You do not have to go through a 3rd party monitoring company. The Tracker only requires a SIM card from either AT&T or Tmobile, or any other SIM card carrier.
2.The system will function and make calls so long as there are prepaid minutes available on your SIM card.
3.SIM card is not included in the package.And the SIM should be 2G card
4.A free trial to your service for 7 days on the platform, extra 15$ for another year.