1. 1.2m spring wire, stretchable freely. 2. 22.5W super fast charge and PD30W fast charge, charge 4 devices at the same time. 3. Made of aluminum alloy, durable. 4. Intelligent digital display, real-time monitoring of battery voltage. 5. No fear of bumps, stable and uninterrupted power supply. 6. Multiple circuit protection, safe and reliable. 7. Voltage: 12V-24V