

Name: Siren
Brand: JINGdong brand
1. Metal siren
Material: stainless steel, hanging rope: nylon, specification: 66.7mm long * 16mm wide; Weight 30 g
2. Brass nose siren
Material: copper nozzle + plastic, hanging rope: nylon, specification: length: 90mm* width: 16mm; The weight of 25 g