The elevator voice reminder,Elevator Voice annnouncer device,bluetooth voice call recorder,digital telephone call recorder,telephone voice prompts,advertising promotion strategy,redbox phone recording,voice advertising device for elevator ,Elevator automatic announcer all is installed in the elevator.we are professional manufacturer,supplier. It has a built-in high-performance MCU and voice chip to play mp3 audio files. Users can replace voice content with a USB flash drive to meet different broadcast content requirements. Widely used in elevator floor reminders, floor voice navigation, sightseeing elevator / cable car scenic spot introduction, public security warning system, elevator voice advertising. The device is suitable for all types of elevators and is easy to install.