Not the cheapest but not too bad either. Silver available too ($355): https://www.thegoodguyscommercial.com.au/sony-noise-cancelli...
Decent price for this model I think. This is the Li-ion version which charges in an hour, has the turbo mode and 90 minutes battery life.
Seems to be a good price for the new chromecast with google tv. Original Coupon Deal Edit: As mentioned by Kirt, you can get it cheaper ($88.11) at JB Hi-fi using the code 92HNJT3Y24C52N