Unboxing & Review for the Kingston MobileLite Wireless device which is a card reader / Wireless media streaming device and portable charger for your android / iOS smartphones and tablets, it has a built in 1810 mAh battery which can provide wireless media streaming for around 4 hrs.
http://www.kingston.com/en/wireless/wireless_readers#mlw221
http://www.tech2buzz.com/hardware/kingston-mobilelite-wireless-for-smartphones-tablets
