A reproduction line of classic synthesizers from the 80s, the Roland Boutique Portable Synths ($299+) retain the feel, sound character and user interface of the originals, but receive modern upgrades.
The retro mini-synths are offered in 3 versions (the Jupiter-8, the JX-3P, and the Juno-106), all highly portable for creating music on the go. They weigh in at just over 2 pounds, feature a high-quality construction with a metal front panel, and are compatible with optional K-25m mini-keyboards, but can also be plugged into any external keyboard. Each model is powered by 4 AA batteries or via USB, has a built-in 0.5W mini speaker, a stereo In/Out USB audio interface, a 16-step sequencer, and dual ribbon controllers for pitch bend, modulation, and sound preview. Now you can party like the nerds of 1983.