Dual Car Adapter, Black for $0.99, Universal Battery Tester for AA, AAA, C, D, 9V & Button Cell Batteries for $1.29

Descriptions:
With this twin socket adaptor you will never run out of power outlets in your car, its a quick and easy way to add additional outlets to any vehicle. It allows any two portable devices, such as your iPod, MP3, CD Player, Radar detector, Cellular Phone, notebook computer or any electronic device that accepts a 12V charger to work simultaneously. To use simply plug the adapter into your existing socket and then you can plug up to 2 additional devices in the twin sockets.

Features:
# Fits all standard cigarette and auxiliary power adapters
# LED power indicator
# Built in fuse protection
# For use with all electronic devices that accepts a 12V charger