Cutter car charger, 2 ports USB: one 2.4A, another 1.0A, the total current is 3.4A, compatible with various USB devices. The metal fuselage is harder and stronger, which is more conducive to breaking through the window in an emergency. Stealth knives can cut seatbelts easily; knives can be hidden without hurting hands or even touching children's hands. Over-voltage, over-current protection and short circuit protection, anti-overheating and over-charging protection.