The Solis 4D+ by Osaki offers a combination of advanced features to help you relax. The dual roller 4D mechanism and flex track system are designed to replicate the feel of a massage therapist's hands. With 190° stretch flexibility and 54 air cell compressions, your massage will target hard-to-reach areas. 18 auto programs and 5 massage styles offer a personalized experience, while intelligent voice recognition and a touchscreen controller also offer intuitive control. Enjoy additional features like lumbar heating therapy, spinning calf rollers, HD Bluetooth surround speakers, and an automatic extendable footrest.