Come and Check Our Promo Solutions.When the car battery power is over low, it can multiply the engine in the field on their own, the engine can be started again. Automotive (4.0L gasoline /2.0T diesel), motorcycle, can be used as a jump starter, such as a take-off board. It can charge the smartphone with 10000mah power. Since the compact is usable as a mobile battery. Switching voltage is available in the LED blinks. Pls check inventory and detailed info with us before placing your orders.