3-Pack Miady 10000mAh Dual USB Portable Charger, Fast Charging Power Bank with USB C Input, Backup Charger for iPhone X, Galaxy S9, Pixel 3 and etc (Red, Blue & Black)

Press the button besides those LEDs to check power remaining.Each LED indicates 0-25% capacity, and a flashing LED means 0% capacity.They will automatically power off if no device is connected for 30s.Capacity: 10000mAh/37Wh (Each)Dimension: 5.5*2.6*0.6 inches (Each)Weight: 0.48 lbs (Each)USB 1 Output: 5V/2.1AUSB 2 Output: 5V/2.1AMicro USB Input: 5V/2.0AUSB-C Input: 5V/2.0ARecharge Time: 5 Hours (5V/2A plug required) When a device is connected, these battery packs will automatically power on or off if unplugged for 30s. Only micro USB cables are provided, to charge your device, you need to use your original cable or buy from other sellers. Unplug then reconnect if your phone is not getting charged.