Korg's RK-100S brings the keytar to a whole new generation of keyboardists and synth players, and it's perfect for stage performance. It's the perfect controller for virtual instruments, synth modules, or the built-in synth sounds, and it can be powered via six AA batteries or by AC power. Best of all, the built-in synth engine is the same one used in Korg's ultra-popular microKorg XL synthesizer, so you're primed for great synth sounds right out of the box. It's got two ribbon controllers for expressive playing, eight preset buttons to keep your favorite sounds right at your fingertips, and much more. If you perform with your keyboard, you need to check out the Korg RK-100S!