Stay connected with the rest of the world by keeping the 4000mAh Power Bank from heyday close by. With a high-speed charging 4000mAh capacity, this portable power bank can keep your devices charged for up to six hours, and includes a USB cable for instant charging of your cell phone, tablet, smart watch, portable speakers and more. Its compact size makes it easy to slip inside your purse, handbag or backpack for portability, and an LED indicator light lets you know how much of the charge is left. hey, you. It's time to make your day. So take a minute to live out loud, to power your look, and let your style speak volumes. Color: Geo.