Ideal for owners of Android or iPhone smartphones, this 20,000 mAh power bank allows you to charge two devices simultaneously. Whether for a phone and a tablet or for earbuds and wireless headphones, this charger is perfect for keeping your devices powered up. The power bank features two USB outputs, enabling you to supply energy to two devices at the same time. Take this charger with you in the car, to the office, or on a plane, so you can effortlessly power your smartphone or other small devices like e-book readers, tablets, or headphones. With its optimal capacity, it can charge a smartphone up to 8 times.