AUTO & MANUAL MODE: The Yagud under-desk elliptical machine offers 12 manual speeds and 12 auto modes (P1P12) with dynamic timing and direction changes. Forward and backward pedaling targets different muscles, adding variety and maximizing workout results. NOISE-FREE PERFORMANCE: With advanced noise-reduction technology and a silent wheel, this under-desk Elliptical leg exerciser delivers ultra-quiet workoutseven at top speed. Stay active anytime, anywhere, without disturbing others, whether you're at home or in the office.