The Portable Battery Boost for micro USB, with card reader is the answer for your emergency power bank questions. The 600 mAh battery is more than enough to charge your dead phone to make an emergency, potentially life saving, phone call. It comes equipped with a carabiner clip to attach to backpacks, belts, or keys so you''ll always know where it is. The card reader lets you transfer files to a computer. This battery pack is for devices with micro USB connectors.
•Extends battery life up to one hour
•Equipped with retractable card reader
•600 mAh of power
•Compatible with any micro USB device
•Built-in carabiner clip