1. Battery capacity: 7000mAh / 25.9Wh, rated output capacity: 4480mAh (5V TYP 1A). 2. Input: Micro-USB 5V / 2.0A Max, Type-C 5V / 2.0A Max. 3. Output: DC5V / 2.1A Max. 4. PC flame retardant material + aluminum oxidation process, anti-scratch, comfort grip. 5. LED power display, you can check the charging power and remaining battery power ( LED1: 1-25%, LED2: 26% -50%, LED3: 51% -75%, LED4: 76% -100%). 6. High performance A + grade polymer batteries. 7. Compatibility: compatible with more than 99% of mobile phones / tablets and USB input digital devices. 8. Size : 14.0 * 5.9 * 1.3cm. Weight: 178g.