A very good price for these earphones which retail for $349 (not sure why Harvey note only a saving of $75 which makes $319 their "normal" price).
They are $349 at JB Hifi and directly from Jabra.
These are the updated 4.5 hour versions (Harvey Norman have the older 3 hour versions for $277!).
Some decent reviews, seems to be one of the better ones for those who want wireless earphones for exercise:
Digital Trends
Tech Radar
Cnet
Def not the best wireless earbuds out there in terms of sound quality….then again there's not many choices if you need one for sports….