Our 2-In-I Sterl Th Car Signal Jammer With Charging Pod contains USB Output Port, Led Display, Aluminum Alloy, aluminum alloy. It can be intelligently adapted to mobile phones, and dual USB ports are simultaneously powered. Its use method is very simple: the product is installed on the corresponding car cigarette lighter to display the voltage value, and when it needs to be charged, the data cable of the corresponding mobile phone can be plugged into the corresponding interface to achieve charging. High-performance main control chip with 5-layer circuit protection makes it safer and more efficient.