The InCharge Micro Boost is an ultra compact emergency rechargeable battery pack for iPod and iPhone. The 500mAh lithium polymer rechargeable battery features an integrated key ring eyelet, making the Micro Boost easy to attach to a user's keychain ensuring a quick charge is available when it's needed most. Additional features include a status LED indicator, USB to micro USB cable for charging and an integrated cap and plug to provide protection to connectors from damage during transport.