KingNeed Smallest Waterproof Mini Portable Installation GPS GSM Tracker/Online Real-time Tracking Device for Vehicle Car Motorcycle E-Bike The Smallest GPS tracker, size is only 52*40*22mm,very easy to hide in a tiny corner of the Vehicle/Car/Electric-bike; Built-in GPS and GSM Antenna, Real-time tracking and replay based on FREE tracking website and tracking APP(IOS&Android) WaterProof design, Wide input voltage range:12-60V,could be install on all vehicles; Very easy to install, Just connect with the positive and negative of power,Power on TUTOMATICALLY after installation; GPS+GSM Tracker with Real-time tracking / Historical track playback/GEO-Fence/GSM Alert and Power Saving function with Motion Sensor.