BIRUGEAR Black USB Car Charger Vehicle Power Adapter for Barnes & Noble NookColor Ebook Tablet Brand new non-OEM. Vehicle Lighter Adapter. (12~24v DC). Output: 2100mah. Short circuit protection. LED charging indication. Intelligent IC chip inside recognizes a full battery and automatically switch to a saver. You must have a USB charging cable (sold separately) in order to charge your MP3 player, cellphone, ebook, GPS with this charger.