it means that your batteries are low.
low battery or not turned on properly?
it depends if you get it wireless
No, you can use the guitar hero 3 controller, which is wireless, for guitar hero two
Yes they will work
yes you can i have all three of them and they all work with the wireless guitar (thank god)
yes
Yes, It should.
No, but in Guitar Hero 5 it works!
Guitar Hero™ Kramer Striker Wireless Guitar Controller
not the wireless guitar but if it was wired than you can
Try putting in new batteries or stand closer to your video game system.
Yes, all the guitar hero controllers (GH 3-6) will work, so you can use a GH 6 guitar on GH 4. ect.