✅【Ultra Huge Capacity】 20000mAh Power Bank charges an iPhone XR 5 times, Samsung S6 more than 5 times. Easy to solve the embarrassment of being out without power. ✅【Dual 3.1A Fast Charging】Auto detects your device to deliver its fastest possible charge speed with 3.4A (max) output. Dual ports up to 3.1A each. ✅【Charge 2 Devices At Once】Dual USB output ports allow you to charge two devices at the same time and save you time. ✅【Safety Protection】Built-in multi-protection system protect the power bank against over current and short circuit. It'll automatically turn itself off when short circuit or overloading occurs. ✅【Airline Approved】 According to IATA's documentation, Pilot X7 20000mAh Portable Charger supplies satisfy its standards for taking on flights.