Butée de porte antidérapante grise - Absorbe les chocs, protège les murs - Compatible tous types de sols (carrelage, parquet, moquette) - Lot de

[Rain and dust design] provides protection with powerful horn sound output.
[Low maintenance] with hibernation state current less than 5mA for energy efficiency.
[MP3 Voice Format] for voice replacement capability via analog U disk connected to computer.
[User-friendly Operation] With short and long press key functions for easy adjustments and settings.
[Sync Output Control] For connecting to external devices like alarm lights.