This 2-port USB car charger works with MP3, smartphone and tablets including iPod, iPhone and iPad. It operates as dual-port with 1Amp each port or single-port with 2Amp for charging iPad. Features built-in over-current and short-circuit protection with LED status light. FCC, CE, e-Mark and RoHS compliant. (Connectors: 2 USB A Female / Input Voltage: 12-24vDC / Output Voltage: 5vDC 2.1Amp / Fuse: 5x20mm 250V/2A)