![[ Flyron FN-A503 ] 30Watts Programmable MP3 Siren Horn with Triggers](/image/K2MAAeSwnWVopIp5/flyron-fn-a503-30watts-programmable-mp3-siren-horn-with-triggers.jpg)
| Brand | Unbranded |
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Check the listing for details. [ Flyron FN-A503 ] 30Watts Programmable MP3 Siren Horn with Triggers. Condition: New. Listed at 59.95 USD. Built-in high quality MP3 player module with 30Watts class D amplifier. -Yellow wire: 1st trigger (K1), green wire: 2nd trigger (K2), blue wire: 3rd trigger (K3), white wire: 4th trigger (K4). 4 trigger inputs available and triggered by negative pulse (low-level) signal / ground.
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