Looking at Sena and Scala...few Chinese ebay jobbies too.
Fairly simple needs, just nav & phone.
Don't require bike to bike (or group) or any of that stuff.
Just reliable, easy to use, good battery life, unobtrusive.
How hard can it be?
Looked on youTube...there are videos that last over 45 mins...but tell you sod all...jeeezzzzzus.
Anyone able to recommend?