The Backcountry Access Tracker’s legendary ease-of-use in our flagship product. This small and light beacon includes a harness and batteries. Description Tracker avalanche transceivers have long been the fastest, easiest-to-use beacons in the industry. The Tracker4 just took it up a notch, with a rubberized over-molded case, larger LED display, and the same Tracker interface that basically makes it impossible not to find your companion. Signal suppression and Big Picture modes for no-nonsense multiple-victim searching. Motion-sensing auto revert-to-transmit mode. Upgradeable software and electronics performance testing for fleet management. Weight: 215 g including batteries, not harness Features Three Antenna Temperature Resistant LED Display Multiple Burial Indicator Close Proximity Indicator Mute Mode Auto Revert Mode Big Picture Mode Signal Suppression Mode Motion-Sensing Auto Revert Upgradeable Software/Electronics Testing Tech Specs Weight: 215 g including batteries, not harness Dimensions: 12 cm x 7.5 cm x 2.6 cm Frequency: 457 kHz Power: Three AAA alkaline batteries Max Range: 55 meters Search Strip Width: 50 meters Batteries: three AAA alkaline Battery Life:minimum 1 hour in search mode after 200 hours in transmit mode (approximately 250 hours in transmit only or 50 hours in search only) Unit Weight With Batteries: 215 grams Harness Weight: 120 grams Warranty: 5 Years Origin: Assembled and tested in the USA Patent: US Patent #6,167,249 & 6,484,021 B1. Certification: : Certified to be in compliance with all applicable North American and European norms.