Mercury: 350.003UK, Wireless Digital Door Phone System, 300m Range, 433 MHz, Weatherproof Outdoor Unit, 8 Ringtones Default:- this boom includes adaptors for

this boom includes adaptors for both 3/8" and 5/8" microphone clip attachments

this outlet is an essential solution for multiple users

this interface ensures your alarm system remains up-to-date with the latest firmware

Energy Efficiency:

Mercury: 350.003UK, Wireless Digital Door Phone System, 300m Range, 433 MHz, Weatherproof Outdoor Unit, 8 Ringtones Default:- this boom includes adaptors forA stylish wireless digital door phone that allows you to talk to your visitors before opening the door. No wires are required between the outdoor and indoor units, making this system very simple to install. It's also possible to connect the outdoor unit to an electronic door lock, utilising the door release button on the indoor unit. Simple wire free installation and setup Up to 300m transmission range 8 Ringtones and 3 adjustable volume levels