Border Patrol night-vision viewer features a panoramic eyepiece made of pliable synthetic rubber material. Eyepiece is constructed to cushion user’s face, allowing for device to be used for extended durations while preventing eye fatigue. Panoramic lens and widened viewing field give user an increased observation area and ability to see farther and over longer distances than conventional night-vision viewers, according to manufacturer. Internal focusing objective lens makes image adjustment easy. Unit is protected against excess light exposure by securely fitting lens cap, sturdy panoramic eyepiece and durable black body. Centurion Systems, Mansfield, Texas