Bushcrafting is a rewarding skill that can teach you much about nature, survival, and self-reliance. Learn to use your tools like a pro – you will put yourself in a much stronger position to survive in the wild
5. Extreme survival mode function that can still back to live by burning fuel when the battery dead. 6.The auxiliary multiplier can at least double the battery power 7. Waterproof Season Spring, Summer, Auturn ,Winter Battery 3.7V 2500 mah ...