The BCA Tracker S™ Avalanche Transceiver has the performance, ease of use and instantaneous real-time display of the Tracker3, without motion-sensing or upgradeable software, which are advanced features needed by snow professionals while in an avalanche area. This Backcountry Access beacon is used to find people while in an avalanche and prevent death or injury by locating the transceiver. Three Antenna Weight - 5.6 ounces (158 grams) Dimensions - 4.8” x 2.9” x 1.0” (12.2 cm x 7.4 cm x 2.6 cm) Frequency - 457 kHz Maximum Range - 55 meters Search Strip Width - 50 meters Battery Power - Three AAA alkaline batteries 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) Assembled and tested in the USA. Patent(s) - US Patent #6,167,249 & 6,484,021 B1. Compliance - Certified to be in compliance with all applicable North American and European norms.