A 7dBi GSM magnetic vehicle antenna is a type of antenna designed for enhancing GSM (2G), 3G, and 4G LTE signal reception in vehicles. It features a magnetic base for easy mounting on the vehicle's metallic surface and a 7dBi gain, which indicates its signal amplification capability. This type of antenna is often used in situations where improved signal strength is needed, such as in remote areas or for fleet tracking.