Linear Vibration, adjustable frequency 10-40Hz, two amplitude settings. Re-engineered from our legacy model VT003F for simplified structure, reduced part count and separated plug-n-play control console. Robust, reliable and durable; Optimized for vibration generation and transfer; Low mechanical noise. Modern Industrial style and modularized design for easy maintenance and part replacement. Exercise and activate your musculoskeletal and neuromuscular systems; Enhance peripheral blood and lymph circulation. Visit our website for product details, potential health benefits and risks. 90-day free return, 10-year warranty. Straightforward, no out-of-pocket expense for customers for any warranty service.