• Choice of 8 digitally improved, crystal-clear melodies. Up to 20 of your own MP3 melodies (15 seconds each) can be played via the USB connection (PC detects doorbell as a drive, file sizes up to 15 MB).
• Maximum volume of 90 dB with an audible range of up to 100 m, the volume is adjustable , sleep/mute mode switches the wireless bell off for 3, 6, 9 or 12 hours.
• Optical notification of the signal via the light ring with 7 adjustable colors and LED flash light (operating modes: only optical/only acoustic/optical and acoustic).
• Waterproof wireless bell push (IP55) with LED function display for visual confirmation of signal transmission, special knocking function for family members (3x press), battery status indicator.
• All wireless doorbells, wireless bell buttons and wireless accessories with Honeywell ActivLink are compatible with Friedland Libra+ and Honeywell Security products with ActivLink.

Tags: Door lock, radio lock