M20000 Power Bank Ultra Slim External Battery with 2 USB Ports Portable Charger Pack for iPhoneX 8 7 6s 6 Plus, iPad, Samsung Galaxy and MoreBlack) Cyber Monday advance purchase, you can avoid Express Delivery crowded, send it as a gift in time. If you are calling your family, your mobile phone has run out of power, how distressed it is! Polanfo can charge your phone 5 times, providing extra 48 hours of talk times. It must be a burden to carry a heavy power bank!! However Polanfo only weighs 7.2oz, lighter than 90% other power banks in the market. You won't like a brick-like power bank. Even if you put it in your bag, what if it crumple the file? But our power bank, the deluxe metal body is only 0.5 inch at its thickest point; slim as your phone, you can put it into your pocket easily. If the charging speed is as slow as a sloth, you may want to drop your cell phone; luckily Polanfo provides 2.1 amp output, to full charge your phone within 1.5 hour. Polymer cell with Aluminum alloy shell, there is no other design more safer than this. Buy it now! 18 months warranty, address your worries for the future test