These headphones are on sale for $100, which is pretty cheap. Then for today only there is a coupon code WRAPPED20, which gives you a further $20 off.
If you select Click and Collect, you don't pay delivery, otherwise it seems to be $9.95 to many places.
These headphones have appeared many times on OzBargain, but rarely anywhere near this price.
TECHNICAL DETAILS:
These are analogue wireless and rechargeable (they have the base, which some models of these don't). They do not get perfect interference free reception, but IMHO they are pretty darn good for reception and sound quality. If you are after digital wireless headphones with no interference ever, look somewhere else. Your opinion may differ to mine, as does one guy who reviewed (panned) them and gave 1 star out of 5 on the Dick Smith site. Read some of the other reviews of these around the net, but you haven't got much time to get the extra $20 off.
Seems you can see the future. How much next week ?