Werma 844 Series Voice Sounder unit, 24 V dc, DC, IP54

• Plays customer specific audio files in mp3 format (tones, songs and spoken texts)
• Easy programming via USB connection cable from PC
• Excellent sound quality
• More than 60 minutes replay capacity
• Postitve and negative logic possible
• Adjustable sound output
• 24 Vdc supply

Windows 7 users may find that audio files don't play first time once downloaded onto the module, however reconnecting the device to the PC and then safely removing the device resolves this problem. Also these devices do not support .ogg file formats (files must be in an mp3 sound file format).