1. Environmental protection and resource saving: use solar energy to charge mobile phones anytime, anywhere. 
2. The compass hook is convenient for outdoor use; there is no built-in battery to transfer electric energy, and the electronic device is powered directly through the built-in Micro cable or USB output interface of the fuselage.
3. It can be directly connected to a mobile power supply, with a soft elastic buckle, which can be bundled with various specifications of mobile power supply to better protect your electronic products
Black line: low beam-yellow light