Intercom systems?

[Skiwi]

Looking for something that could go bike to bike, or rider to pillion, or iphone to helmet.
Has anyone tried one of the below, and if so what's your opinion?

http://www.trademe.co.nz/Browse/List...x?id=639676173

Pulled the trigger and got 4 of these, first impression is good, better quality than I expected and was easy to charge and pair up.

Had to "modify" my helmets a tad to countersink the speakers enough so they wouldn't press on our ears.

Good sound quality from phone and intercom at town speeds, callers couldn't tell I was on a bike until I got a wee bit too enthusiastic with the throttle. Music is ok, but as expected from speakers these size they lack a bit of bass.
I'll report back on highway speeds performance later on.

**Update** - Highway speeds were a mixed bag, I could hear my pillion fine, but she said I was distorted. I reckon I'll swap my pillion out and try again just to check the first one doesn't have shite hearing before I start fiddling with anything else.