
I have a 4000 square meter commercial building. ft. The receiver is at the front door and the buzzer is 75 feet from the front door with two interior doors in between. The buzzer catches the signal from the front door perfectly, no problem. We also have a noisy workshop and hear the buzzer almost all the time unless we have a coffee grinder running. Otherwise, the buzzer will be heard over any main shop/mechanic noise.

Compact USB-Powered Desk Fan With Four Speeds, Strong Airflow, And Quiet Operation - 310° Adjustable, Portable Mini Fan For Home, Office, And Bedroom (Navy Blue)
35 Review

Smart Column Yandex New Station Mini - smart column with Alice (with watch), black onyx
432 Review

Radar detector Inspector Spirit
39 Review

StarTech.Com HDMI To VGA Cable – 6Ft 2M - 1080P – Active Conversion – HDMI To VGA Adapter Cable For Your VGA Monitor / Display (HD2VGAMM6)
38 Review

🎧 FARO Aviation Headset Converter: Low to High Impedance Adapter for General Aviation (GA) and Military Headsets
9 Review

✈️ Enhance Your Aviation Experience with the David Clark H10-13.4 Aviation Headset
9 Review

ASA HS-1 Aviation Headset: Elevating Communication and Safety in the Skies
8 Review

🛩️ Stratux ADS-B Dual Band Receiver: Advanced Aviation Weather and Traffic System with WAAS GPS, AHRS, Battery Pack, Suction Mount, Antennas, SDR
9 Review