The behavior and pinning characteristics of domain walls in cobalt and lithium ferrite micropowders, as well as cobalt nanopowders, were investigated. The study employed the microscopic two-pulse spin-echo nuclear magnetic resonance technique with an additional magnetic video pulse applied between the radio-frequency (RF) pulses. This method yields two-pulse-echo suppression characteristics under magnetic video-pulse excitation, where the two-pulse-echo suppression signal is proportional to the domain wall velocity, similarly to observations from the magneto-optical Kerr effect (MOKE) and the Sixtus–Tonks technique. Unlike macroscopic approaches such as the magneto-optical Kerr effect and Sixtus–Tonks methods, this technique provides local, site-specific information about domain wall mobility and pinning strength. The obtained results may contribute to the development and optimization of magnetic micro- and nanopowder production technologies for applications including sensors, memory devices, rare-earth-free permanent magnets, water treatment systems, and other advanced technologies.