The Rotating Beacon with MP3 Voice Annunciator Horn delivers high-intensity audible alerts (120dB) and bright visual warnings, making it ideal for cranes, engineering vehicles, banks, border security, and buildings. It supports MP3 playback (16–320Kbps) with a maximum audio output of 20W. Sound files can be easily updated via USB flash drive: the beacon flashes during file transfer and automatically plays the first track upon completion. The unit features built-in SPI memory (4–64Mbit) capable of storing over 2000 seconds of audio. It operates on a wide voltage range (DC12V-24V or optional AC220V) and is rated IP67 for dust-tight and water-resistant protection.
| Power supply | DC12V-24V,AC100V-256V | ||
| Working current | Standby status | ≤50MA(DC12V) | |
| Playing status | ≤2A(DC12V) | ||
| Audio format | MP3 | Bit rate: 16Kbps~320Kbps | |
| Audio output power | 16Ω/20W(typical value) | ||
| Alarm loudness | ≤120db | ||
| Environment temperature | -20℃~70℃ | ||
| Relative humidity | 10%~95% | ||

