The product is composed of horn, strap, back cover of main unit, microphone, key switch, charger jack, volume adjusting knob, signal switch, etc. It can realize the function of siren and public address. It is powered by 8 1.5vlr14 batteries.
The speaker horn shall be white, back shell. Handle should be blue.
1. Power: ≥ 20W
2. Frequency characteristic: 300Hz -- 20KHz
3. Output sound level: 110dB
4. Speaker harmonic distortion 10%
5. Product size: 270 * 162 * 220mm
6. Transmission range: > 500m
7. Battery life (dry): expansion - 30 hours, alarm - 4 hours
The products have been tested by the quality testing center for safety and police electronic products of the Ministry of public security, and all technical indicators meet the standards.