Specifications: Material: Aluminum alloy Dual USB interface, voltage detection, good compatibility QC3.0 Qucik Charge With waterproof cap Voltage LED Digital Display Built-in short-circuit protection of over-current and over-voltage, support trickle maintenance charging mode USB Port: 2 USB Voltage Input: 12V-24V Power Output: 5V 2.1A+2.1A Operating Temperature: -30-60℃ waterproof rating: IP67 Wide Application: cars, motorcycles, ATVs, SUVs, UTVs, Boats, etc Multi-purposes: supply power for cellphone, tablet, GPS and other USB-devices Package include: 1* USB Car Charger Adapter 1* 23.7 Inches Wire with 10A fuse 2* Blue Terminal.