1. The use of high-quality new lithium batteries battery recycling number more than 500 high safety. 2. The power boost and Step-down independent IC control scheme the maximum output current of 3A power conversion efficiency as high as 90%. 3. Two power output port can also give two part or two part mobile phone charging equipment and power supply. 4. By the control technology of intelligent software automaticadaptation technology to realize voltage for charging equipment of automatic correction and current. 5. Built in intelligent chip and adding multiple protection functions: short circuit protection over discharge protection over temperature protection and overcurrent protection. 6. Compatible with most mobile phone tablet PC and handheld digital equipment.