Series 9 Easy installation - no wiring required, Wireless range of up to 200 m (measured in field conditions, walls, ceilings and metal structures reduce the maximum range), built-in repeater/radio amplifier increases the wireless range to up to 400 m (measured in field conditions, walls, ceilings and metal structures reduce the maximum range, additional wireless chime Series 9 is required), Honeywell ActivLink for reliable wireless range, Digitally enhanced sound with volume control, Maximum volume of 90 dB, Listening range up to 100 m, Choice of 8 melodies, Sleep/mute mode, Visual notification via HALO light ring with additional LED flash, Includes brackets, Up to 5 years battery life, Optional power connection via micro USB. Set contains: wireless gong and extension transmitter (including CR2032 battery for the extension transmitter), wireless extension of an existing bell or intercom system
