The Fox Halo Illuminated Marker Pole Remote is the dedicated control unit for the Halo Illuminated Marker Pole system, letting you manage up to four poles from a single handheld device. It offers a range of 350m in clear line of sight, though battery strength, foliage, and weather conditions can reduce that range in practice. - Range of 350m in clear line of sight (battery strength, foliage and weather conditions can reduce range) - Can operate up to four Halo Illuminated Marker Poles - Remote standby life (with quality new batteries) is approximately 833 days/2.28 years - Remote operational life (with quality new batteries) is approximately 13 hours/46,800 button presses