●Packaging Content: 5V5000mAh lithium polymer rechargeable battery * 2, USB charging cable * 1. ●USB Input Port: 5V/2A USB input port, convenient for charging when going out. ●Mini Size: Small portable rechargeable battery, weighing approximately 0.198 pounds/PC, so it wont become a burden even if used for a long time. ●Battery Capacity: 5000mAh/18.5Wh. Please fully charge before first use. If not used for a long time, charge it at intervals. This helps to extend battery life. ●Widely Compatible: 5V/2A DC output port, suitable for electric heating shoes, electric heating gloves, electric heating socks and other electric heating products. Attention: Please confirm the product parameters before purchasing.