These Newcon LRB 4000CI laser rangefinder binoculars use the time-of-flight delay to calculate distance and speed and can transfer data using the RS-232 interface. These binoculars have low power consumption, a rubber-armoured body, a long eye relief, two-button operation, and wide objective lenses. The LRB 4000CI is tripod-mountable, are compatible with night vision monocular systems, and are compatible with Newcon's Android communications system (requires optional accessory kit, not included).Specifications: Newcon LRB4000CI 7x50 LRF Binocular