1. Capacity: 4000mAh / With Clock and Speaker Functions
2. Battery: High Quality Lithium Polymer
3. Input: DC 5V/2A Output: DC 5V/1A~2A
4. Wireless output : 1A / Transmission Distance : 8mm Max
5. Perfectly compatible with smart mobiles and all 5V digital devices
6. With Over charge / discharge, Overcurrent, Short-circuit, Overvoltage protection.

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