1. Capacity: 6000mah 2. Battery: High Quality Lithium Polymer 3. USB Output 4. Input: DC 5V/2.0A Output: DC 5V/2.1A 5. Perfectly compatible with smart mobiles and all 5V digital devices 6. Over charge / discharge protection, Overcurrent protection, Short-circuit protection, Overvoltage protection. Provide customized the best Power Bank business gift set. We are expert to custom-made corporate gift. The unique premium idea with professionalgift solution.