Type:Hand Crank Siren Horn Material: aluminum alloy Operation:manual hand lever operation Color:Red Sound output: 110 ± 2 (dB) Audio frequency: 550 ± 20 (HZ) Transmission range: 1000 (Φm) Height: 23 cm Outer diameter: 11.5 cm Package size:17*16.5*16.5cm Package weight:1.6kg.
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