The QOLTEC 50142 is an automotive power supply and USB charger that features a USB A Socket, a USB C plug, and output of 5V/3.4A. The charger is designed to provide a reliable, safe and stable source of power for automotive electronic devices. It is ideal for charging an array of devices, including mobile phones, tablets, e-readers, digital cameras, and music players. It has an overcharge and over-temperature protection mechanism to protect devices from being overloaded or damaged during use. The device also features short circuit protection and over-current protection for added safety. It has a small size and is lightweight, making it ideal for travel or in vehicles with limited space.