... * Memory for last frequency. * Powered by iPod. * Charging for iPod with car adapter.(optional accessory) * Blue backlight.Specifications* Frequency ... 92g (with car adapter), 56g (without car adapter) * Packing: Paper BoxCompatible with* Compatible with iPhone 3G,iPhone,iPod classic, touch, ... you connect the FM transmitter to iPod, you can charge iPod with a car adapter connected to the FM transmitter. ...