We have introduced many nice power banks and several practical wireless card readers, but if you need both the two functions, the following WiFi Stash portable wireless card reader with backup battery may be more suitable for you.
This is a multi functional wireless card reader designed to offer you a wireless way to stream media to your wireless-enabled mobile devices. As we can see from the images, the wireless card reader features compact design for easy to carry, and comes with two memory card slots and a USB port in order to support SD/ MMC/ TF cards and USB drives, using custom designed app you can easily transmit, browse, view all supported files via your smartphone and mobile devices like iPhone 4/4S, iPhone 5, iPod, Samsung Galaxy S4/S3, Nokia Lumia 920 and more, and you can also use browser to access the wireless card reader. Moreover, the card reader doubles as a power bank that contains a built-in 2000mAh rechargeable battery so you can use it to charge your mobile device on the go.
WiFi Stash portable wireless card reader with backup battery is priced at $54.99 USD. If you’re interested, jump to USBfever online store for more details.