Philips In-Ear Headphones selling for $4 at Harvey Norman
The Philips In-Ear Headphones are selling for $15 on other popular websites like Big W. Even that is not a bad price considering the quality. But it seems that you can get it at a much cheaper price on Harvey Norman. Currently the website is offering it at $4. Maybe it is a typing mistake but the point is you still have time to order it before the site management team notices anything unusual. If you are fast enough you might get the earphone at this very cheap price. If by the time you visit the website, this offer is no more available, that would imply that the error has been fixed.