... Memory for last frequency. * Powered by iPod. * Charging for iPod with car adapter.(optional accessory) * Blue backlight.Specifications* Frequency response: 100Hz ... 5mm, input 12V 150mA, output 12V 150mA * N.W.: 45.5g (with car adapter), 9.5g (without car adapter) * G.W ... ), 56g (without car adapter) * Packing: Paper BoxCompatible with* Compatible with iPhone 3G,iPhone,iPod classic, touch,NANO 4G, nano ...