This seems like a good price for a cheap peripherals bundle.
No brand name that I could see. Comes with a 12 month warranty.
The mousepad seems fairly large, it's 25 x 35cm.
Price is currently $35, was $49.
Specs from Kmart's site:
Mouse
Resolution: 1200-1600-2400-3200dpi
Input rating: 5V/100mA
7 buttons gaming mouse with metal on the bottom
Ergonomic design, with anti-slipping surface
Key life: 3,000,000 times
Cable length: 1.5m / 4.9ft
Plug and play
Keyboard
Super slim suspension gaming keyboard with backlight
104 keys, 19 anti-ghosting keys
Key life: 5,000,000 times
Rainbow LED light
Metal top cover
1.5m / 4.9ft USB cable
Plug and play
Headphone
Speaker: 40mm
Impedance: 16+/- 15% ohm
Sensitivity: 100+/- 3dB
Frequency response: 20Hz to 20Khz
Microphone: 6.0 x 5.0
Operating current: Greater than equal to 80mA (5V)
Cord length: 2.1m / 6.8ft
Plug: 3.5mm+ USB
Mouse pad
Anti-slip rubber base effectively keeps the mouse pad from slipping
I got the Typhoon one from officeworks the other day for $29, it wasn't great but for < $30 it was passable …
https://www.ozbargain.com.au/node/601367