Not one to advocate the use of any device that will hamper our concentration while riding (most I'll do is listen to music via helmet speakers or earbuds), but I think this item is kinda unique and neat for those who "absolutely" must keep in touch. Then again, it's not any different from the FRS or intercoms riders use anyway. This unit though will only work on cellphones with VOX feature. Therefore, one won't need to get hands off the bike's controls. Not a bad price too. What do you guys think? Me personally, nah, I turn off my cell phone when I am out riding.
http://www.clearercom.com/noise_cancelling.html
http://www.clearercom.com/noise_cancelling.html