We bought one of the cheap Bt800 v2 sets off ebay.
much better than the Scarla Q2 sets we had.
Better radio, clearer intercom, louder speakers, longer lasting battery, nothing has failed or broken and £40 the pair compared to the £170 for the Q2 teamset.
Both speakers in my Scarla have died, the mic plays up and one speaker doesn't work in SWMBO's, both base units have been replaced in the first month under warranty. Base units are £40 each... where I can buy a set of the BT800's for the same money.
I wouldn't buy anything by Scarla/Cardo again.
the V2 has the FM radio the V1 doesn't.