Last cheapest iIve seen this was $58 before
Description from Amazon:
The IXO – The iconic power tool now in its 6th generation
Infinitely variable speed control: The more push on the speed trigger the faster the rotations - no more damaged materials, no more worn-out screws
Battery status indicator: This cordless screwdriver provides detailed battery status thanks to the 3 LED battery indicator
Wide range of applications: The screwdriver features an interface for various attachments for every-day and fun tasks in and around the house
Dual charging: The IXO can be charged easily directly via micro USB or with its additionally available charging station
UK import, I doubt it would have an Australian power adaptor. Just be aware.