Ultra-small and low profile USB car charger with AC wall adapter keeps your USB-powered devices from running out of power when you need them most. Designed for use with smartphones, MP3 players, and other devices with a mini or micro USB port. The USB Car Charger is one amp-ready to provide quick smartphone charging or battery boosting. Adapter/Charger Type: Car/Wall Charger; For Device Type: USB Devices; Power Source(s): Airline Empower? Port; Vehicle Outlet; Connector/Port/Interface: Micro USB; Mini USB.