2 To 2.9 Inches

1.Support Internet Network data transmission;
2.Supports remote operation of mobile phone. Function: recording, Sound monitoring, GPS track, machine state, restart, etc;
3.Support GPS and LBS (location based service) double tracking system, improve the accuracy of position;
4.Super magnetic power. Build-in 2 pcs strong magnet, you can put it on the metal plate and absorb it automatically;
5.Multiple functions of security, tracking, monitoring surveillance, alarm systems and management as a whole;
6.Handheld and vehicle target. Used extensively for vehicle, person and other moving objects;