1.DOES NOT GETHOT WHEN CHARGING SAFEWITH YOU.Using the industry's high-level synchronous rectification technology.Will not get hot even when outputting high voltage and high current. 2.COMPREHENSIVE UPGRADE SMART FAST CHARGE. 3.3.4A dual output Time saving and efficient assistant.3.4Ahigh current output fast charging without queuing Simultaneous 3-charge high efficiency. 4.DOES NOTDAMAGE THE BATTERY,MAKE SENSE SOON.Built-in smart chip Smart matching equipment required current No damage to the phone, safe and fast charging. 5.Efficient set with 3-in-1 data cable,safer with self-developed data cable Faster30% speed up. 6.NO FEAR OF BUMPS UNINTERRUPTED POWER.Thick metal shrapnel,firmly lock the cigarette lighter.Accompany you to go north and south. 7.MULTIPLE DEVICES PLUGAND CHARGE.Standard USB interface widely compatible A variety of electronic digital devices on the market. 8.DON'T PICKA CAR MODEL GENERALMOTORS.Standard 12-24Vvoltage Car truck general.