No it can't
The blue iDog is approximatly 30-40$ in counting. I know this because I have a blue iDog as well! 30-40$ is a pretty great deal, my blue iDog came with little pink sequin stickers to decorate it. It also came with a white connector cord to connect to your ipod and it can also connect to ipads.
yes because i use my shuffle with my idog and it always works
an ipod
yes
Yes you can use your iphone for an idog if you have the cord that came with the idog.
You use the cord that came with your iPod and connect the cord to your iPod and computer
Yes. it works for all ipods.
To get music to play on your i-dog you have to plug your iPod into a hole that's on one of the legs with the cord that came with your i-dog. You can also use the cord to plug it into a CD player.
Since MP3 and iPod are incompatible, you can't use an MP3 port to connect an iPod; you can only use a port that will accept an iPod cord.
A ipod or any other mp3 player would work.
USB is the connector you use to connect iPod or other device to a computer. then it means connect your iPod to your computer using USB