1. ACTIVE COOLING SYSTEM - The one and only SUP electric air pump with active cooling system up to 20PSI FOR 3 BOARDS IN A ROW 

2. BULIT IN 7500/15000MAH LITHIUM BATTERY - More convinent to used a outside (3*2500mAh or 6*2500mAh battery). 

3. FAST & POWERFUL DUAL STAGE & AUTO OFF FOR EASY INFLATION - Automatic dual stage pump: 1st stage for MAXIMUM SPEED at 350L/min and 2nd stage for MAXIMUM PRESSURE at 70L/min. The AUTO-OFF FUNCTION turns the pump off when target pressure is reached when inflating. 

4.12V DC CAR CONNECTOR & FULL SET NOZZLES ATTACHMENTS - Connects to your car's 12V DC connector. Features a 12A fuse for increased safety. 

5.DIGITAL DISPLAY WITH REAL TIME PRESSURE MONITORING - Use the digital display to set your desired pressure and monitor the pressure in real time. PUMPING HAS NEVER BEEN EASIER!