1).4 functions in 1 :
FM Transmitter
Ipod Holder
Ipod Charger
Ipod Remote
2).The ipod dock connector to USB 1394 cable offers data transfer for
quickly loading an entire music library on ipod or ipod mini.
Connect the Firewire cable up to the ipod or ipod mini power adapter
to charge while syncing. Compatible with ipod with Click wheel, ipod mini and ipod with dock connector.