The MRB does not rely on a vision-obscuring eyepiece. An MRB employs a waist level display.
Operators can use both eyes to read the display, do their jobs, and walk safely.
An eyepiece unnecessarily complicates life and work - the operator must view multiple images simultaneously. Existing wearables sometimes add a tethered handheld to replace the eyepiece. With the MRB's belt-mounted display users always have both hands free. The MRB facilitates task specific configuration. And it can function simply as a CE platform permitting the attachment of Peripherals and batteries.