1. Super waterproof grade IPX4 (limited to life waterproof, please do not soak the product in water) 2. Super dustproof and anti-fall function 3. Built-in 8000mAh lithium polymer battery 4. External 1 W high-power monocrystalline silicon solar panel, super absorption rate 5. Environmental protection silicone shell, ABS+PC+ fireproof material plastic shell 6. Using super bright LED lights 7. Built-in dual USB interface 8. Configuration carabiner, can be hung on the backpack 9. Applicable to iPhone, Android smartphone, iPad, GPS, camera, etc. 10. Product size: 142*75*13.6mm