The compact (13 x 13 x 5cm) Pixie is available in black or yellow, and runs on four AA batteries or the included mains adaptor. It receives FM and digital transmissions.
Next on the price ladder is the $99 Retro with a woodgrain finish cabinet and knobs for adjusting volume and tuning. Features include alarm clock, an auxiliary audio input.
The $139 unit supports MP3, WMA and Real Audio streams, and includes alarm clock functionality.
An extra $40 buys the Deluxe version with stereo sound and remote control.
All of these models are available immediately.
"We've had an extremely popular range of feature-rich digital radios for a while now, but we didn't have many size and design options. We've listened to our customers in terms of which additional designs they want to see from Kogan, and today we're delivering exactly that," said founder and CEO Ruslan Kogan.
"We're huge fans of digital radio technology and we'd love to see more people enjoying it!"