Griffin PowerBlock Dual Universal Charger for MP3 Players and USB Devices (Black) Works with AC outlets from 100V to 240V Non-polarized blades fold flat for storage Charges Sansa, Creative, Zune, Samsung, iPod, iPhone, and most other MP3 players and devices that charge via USB Charge two USB devices at the same time from the same wall outlet LED glows green to show PowerBlock is ready to charge Charge two USB devices at the same time from the same wall outlet Charges Sansa, Creative, Zune, Samsung, iPod, iPhone, and most other MP3 players and devices that charge via USB LED glows green to show PowerBlock is ready to charge Non-polarized blades fold flat for storage Works with AC outlets from 100V to 240V