This is a solar phone charger and power bank. Perfect for all adventures and in emergencies as well. It is waterproof so you don't have to worry about it on the trail. It includes a flashlight, compass, and carabiner to attach it to your pack. It is 20,000 MAH meaning it will charge your phone 5 times (depending on you phone) once it is fully charged by the sun. After charging your phone, leave it out in the sun to charge until you need it again. Includes a micro charging cable.