1. Using dedicated filters for efficient signal transmission and high precision.2. It adopts dual LNA two-stage amplifier, which has good signal strength and supports multiple devices at the same time. The broadband input is 1575-1602MHZ.3.USB port GPS receiver. Can be used for common smart mobile phone, laptop, desktop computer, tablet PC etc.4. Easy installation. Simple operation, only the relevant interface is plugged, turn on the power.5. With magnetic mounting base.