Slim power bank emergency battery with PU and ABS Rubber coating. Metallic side center panel lights up to show off logo. Power/Technology: Two Rechargeable Lithium Polymer batteries; 3.7V; Capacity: 8000 mAh (4000 mAh each); Input: DC 5V/2.0A; Output: DC 5V/ 1A & 2.1A; Work current: 2000 mA; Standby current: <0.3; Operating temperature: 0~45°C tor Charging and 0~50°C for discharging. Device must be charged prior to first use. Charge time varies by device USB charging cable and instructions included. UL Certified (UL File # MH60484) and FCC Approved. WARNING: Refer to the item manual for safety and warning instructions. **This item can only ship to the contiguous United States and Canada via ground**