This solar charger has three key components: a large flexible solar battery pack for energy collection (only 0.21mm thick); a large energy-storage battery pack; and efficient electronics. All functions are integrated into a compact cylinder through an ingenious reel design. Pull out the solar module lock to collect energy, and withdraw the lock key to automatically recover the solar module. In addition, it has integrated LED lights to provide illumination at night. Whether you're hiking or fishing in the wild, xSolar can use the sun's energy to continuously charge your smartphone and other devices.