SPK/QMPS SERIES QMPS Type: 30 Built-in Sounds (Max. 98dB at 1m), 30 MP3 User-Defined Sounds (Max. 95dB at 1m) Voltage: DC:12V,24V AC:110V,220V Dimension (mm): □120×120 Depth: 69 Materials: ABS Protection rating: IP54 SPK Type: 15 Built-in Sounds (Max. 85dB at 1m) Voltage: DC:12V,24V AC:110V,220V Dimension (mm): □80×80 Depth: 75 Materials: ABS Protection rating: IP23