Ajax SpeakerPhone Jeweller, wireless voice module for alarm verification, verify alarms, request help, deter intruders, AI voice optimization, VoRF communication protocol, up to 1700m wireless range, tamper protection, easy installation, up to 3 years battery life (in standby mode), voice clarity up to 10 m, speaker volume up to 103 dB, optional external power supply, incl., SmatBracket, 4x CR123A batteries (pre-installed), mounting kit, quick start guide