Why choose this solar power bank? 36800mAh powerful enough to juice up your phone for several times.Sturdy structure, not broken, very durable.3A (max) outputs let you 2.5X faster power up your devices.The calibrated compass is very useful.Serves as not only an on-the-go charger but a handy flashlight in the dark.Solar charging offers more possibilities in emergency situations Waterproof The sealed structure provides safe waterproof protection for the power bank. Shockpoof Rugged engineering ABS material, the strongest protection for power bank. dustproof The sealed structure provides safe dustproof protection for the power bank. Super bright flashlight The effective distance of the lighting is about 80 meters, and it can last for 100 hours, dispelling the darkness for you. Note: (Long pressing the power button for 3-4 seconds,flashlight turn on, long pressing again, flashlight turn off ) High precision compass The compass that comes with the power bank is strictly calibrated when it leaves the factory. Make sure that the power bank can accurately point you in the direction. Dual USB fast charge Two 5V3A fast charge USB outputs, which can quickly fill the device for you. Package List: 1 x 36800mAh Solar Charger 1 x USB Charging Cable 1 x Carabiner 1 x User Manual