dual usb car charger; 1.safty& heat reduction 2.Over current, over voltage protection 3.small enough to carry around Specification of dual ... usb car charger: Input: DC12V-24VOutput: DC 5V, 100-1000mAMaximum power ... , blackberry, NDS, NDSL, NDSi,ZEN,ZUNE,MP4 etcDetailed picture of dual usb car charger: Max 5w output 5v500ma 5v1a ...