Brand: Remax Model: RCC239 Input voltage: 12V-24V Input current: 1.3A Frequency: 130kHZ The output voltage: USB1 output: 5V-2.4A USB2 output: 5V-2.4A Dual USB total output: 5V-2.4A Total output: 12W 1. Dual USB ports, charge two devices at the same time. 2. Ultra-mini size, almost invisible in the car, neat and space-saving. 3. The built-in chip supports automatic detection of charging voltage in different protocols, safer smart charging.