- Support 4-frequency GSM 850/900/1800/1900 MHZ
- High sensitivity, new technology
- Excellent for fixing the position even at a weak signal status
- Work well even in areas with limited sky view like urban canyons
- Compact size, and smaller than one name card for easy to hide
- Very Low power consumption
- Fast Signal Acquisition
- Support single location and continuous tracking; location triggered by tracker; location triggered by authorized cell phone
- External GSM and GPS cable style antennas
- Comes with 3.5mm cable style microphone set
- JD1914 plug relay holder included
- 1 * connection cable included
- English use manual included