Strong and durable wired plastic materials, heat resistant, moisture proof, shockproof, anti-seismic single tone Mature circuit design. Big noise power and low voltage, safe to use The red wire should be connected to the positive electrode, the black wire should be connected to the negative electrode With strong iron bracket for fixing, firm and convenient Ideal for outdoor and indoor security systems. You can easily install it in the vehicle or at home. It is also ideal for industrial use Description: Our electronic siren has a loud sound. It is easy to install and made of durable materials, long service life. Wired, low-voltage heat-resistant plastic materials, sturdy and durable, moisture-proof, shock-proof ability, anti-seismic unique tone.Mature circuit design Large sound output, ideal for outdoor and indoor security systems. You can easily install it in the vehicle or at home. It is also ideal for industrial use. Worth buying Specifications: Condition: 100% Brand New Shell material: plastic Rated working voltage: DC 12V Rated working current: 750mA Operating voltage range: DC 6 ~ 15V Output pressure: 110 3dB/m (at 12V DC/platform test/30m3 space) Continuous working period: 120min (at DC 12V) Working temperature: -20~+60 Voice coil DC impedance: 60.5 Tone: single tone (IC sound source) Size: approx. 4 x 4.6 x 6cm/1.6 x 1.8 x 2.4inch Quantity: 1Pc Package weight: 65g Package included: 1 x Electronic Wired Alarm Siren for Security System