Comments about CARDO Systems SCALARIDERQ2 Bluetooth Helmet Mounted Headset:
NO MANUAL! I called for operation instructions, to get started. I got it by e-mail with a promise of a manual to be mailed. That was almost 3 months ago. Have called twice still no manual. I am sure there are a few functions I am missing out on. The wife and I have been on many short and long trips{180 to 4500 miles}aaaaaaaaaaaaand find that this system works better than advertised. We have had up to over 12 hours of talk time.