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it conform with national standard GB8108-1999.
Novelty structure, attractive design, execellent performance, complete function, covenient operation, steady and safety, ideal choice for upscale vehicles.
1. Monolithic integrated circuit in steadier performance.
2. special super-thin design, harmonious with inner decoration.
3. kind of warning tone are optional such as siren, horn, tool, base tone and amplifier tone
4. volume of amplifier tone and warning tone are adjusted at your option.
5. front panel are shown in english
6. controlling two groups of big power light bar at the same time without being restricted by power switch of siren