Xlayer Micro Powerbank with 20,000 mAh extra strong performance in an ultra-compact format: Your mobile USB battery is the size of a credit card. It fits easily into the smallest spaces in your handbag, backpack, and luggage. For all your USB mobile devices: Charge your smartphone, tablet, portable speakers, and much more on the go—without needing a power outlet nearby. Charge two devices simultaneously: This perfect device features 2 USB ports for simultaneous charging. High capacity for many extra hours: 20,000 mAh extends your smartphone's runtime. Ideal for camping, hiking, day trips on vacation, and more. Four LEDs keep you updated on the charging status of your power bank. Choose between two charging options for the backup battery: Charge via the included USB to Type-C cable through the USB-C input or through the Micro-USB input. The power bank is compatible with all smartphones, tablets, and other USB-powered devices that have a 5V charging input.