Korg RK-100S Keytar – Red: Keyboardists can move freely on stage with the stylish 37-key Korg RK-100S Keytar in red. In contrast to its predecessor, it does not require an external module because it has an integrated 200-preset MMT (Multiple Modeling Technology) sound engine. It is a strong and portable option for dynamic live performances and even studio use because of its wooden body, dual ribbon controllers for expressive modulation, and battery power.