Ajax StreetSiren Jeweller, wireless siren for indoor and outdoor use, acoustic alarm, LED indicator (arming and disarming), doorbell function, LED indicator after alarm activation, configurable alarms, 85dB to 113dB, alarm duration from 3s to 3min, up to 1500m wireless range in open space, wireless firmware updates, tamper-proof, easy installation and setup, up to 5 years battery life, incl., SmartBracket mounting plate, 4x CR123A batteries (pre-installed), mounting kit, quick start guide