1. Dual-use charging and plugging, with power bank, dual digital display; 2. Rated voltage: 7.4V-2A; 3. Full charging time: 4 hours; 4. Battery life: 25min under load and 30min under empty load; 5. Charging cable: Type-C cable, 3m cigarette lamer power cable; 6. Air volume: 19L/min