Sleek Aluminum 4000 mAh Power Bank 400 mAh/3.7V Capacity has 8 panels covered with

has 8 panels covered with 190T Pongee fabric and features automatic open and closure

Charger is Qi-equivalent compatible

Double-wall vacuum construction with copper insulation

The symmetrically outward curving sides of the Beecroft end at the rounded corners of the sloping top edge

Sleek Aluminum 4000 mAh Power Bank 400 mAh/3.7V Capacity has 8 panels covered withThe Bullet Sleek Aluminum 4000 mAh Power Bank has a rechargeable lithium polymer Grade A battery for charging smartphones, tablets and mobile devices with a total output of 5V 2A. The power bank's dual outputs allow you to charge two devices simultaneously. It also includes a battery check button that displays the remaining battery life. The reusable power bank charges via an included USB A to Micro cable, which can recharge the battery backup or be