A neutron "precession device" consisting of two adiabatic gradient field RF spin flippers was built. The "zero field precession" (ZFP) is demonstrated over the path length between them in a spin echo experiment in which a DC coil is used for compensation. Signals as a function of this DC field are shown for a single wavelength and for a "white" neutron spectrum. This development extends the use of ZFP to white neutron beams.