This cordless paddle board pump features a 15600mAh rechargeable battery pack, delivering up to 36 minutes of runtime and enough power to inflate multiple standard inflatable paddle boards on a full charge. The included 12V Dc car connector offers reliable backup power for use at the beach, lake, camping trips, while traveling. It has fast dual-stage airflow modes, reaching 350 L/min for quick inflation and 70 L/min for high-pressure topping out, a maximum pressure of 20 Psi. You can inflate a standard inflatable paddle board in as little as four minutes, quickly deflate units after use for simpler packing and storage. An Lcd display lets you set a target pressure between 1 and 20 Psi and monitor real-time pressure readings, the pump automatically shuts off once the selected pressure is hit to prevent over-inflation and streamline setup for both new and experienced users.