Signal patch function
   - If an emergency broadcast input signal occurs while playing a music file, the music file is blocked and the emergency broadcast is output.

Voltage check function (AC detection sensor)

   - Automatically regenerate when AC voltage (AC 220V) is detected (when sensor mode is set)  

•Network function
   - Control and check the presence or absence of music playback file upload, volume, schedule file, contact point, play information, and operation status on the operator's PC

Line output function

   - Line output function is built-in and connected to a separate amplifier  

Human body detection function (PIR sensor)
   - Automatic playback when human body movement is detected (when sensor mode is set)

Contact function
   - Contact is ON during playback / OFF when stopped to control separate equipment

Built-in 3W digital amplifier (High Impedance)

   - Built-in 3W digital amplifier  

Emergency switch function (contact sensor)
   - Automatic playback when emergency switch is detected (when sensor mode is set)

Sensor interlocking function

   - Controls warning lights / sirens in conjunction with sensor operation