?Features:<br> 100% DIY siren horn.<br> Just "+" "-" two connect wires£¬ easy to install.<br> With on/off push button£¬ no need installing additional switch£¬ convenient to use.<br> 3 kinds of sound for emergency£¬ loud volume.<br> Can be used on car£¬ motorcycle£¬ E-bike£¬ etc.<br> <br> Specifications:<br> Color: Black<br> Material: ABS<br> DB: 110dB<br> Power: about 30W<br> Current: about 1.5A<br> Buttons: 3 (three sounds optional)<br> Suitable models: cars£¬ motorcycles£¬ mopeds£¬ electric motor cars (24-72V need to install converter)£¬ trucks£¬ construction vehicles£¬ and so on.<br> Package Size: 12 * 12 * 11cm / 4.7 * 4.7 * 4.3in<br> Package Weight: 390g / 13.8oz<br> <br> Package List:<br> 1 * Siren Horn<br> <br> Installation tips: horn red wire to positive£¬ black wire to negative power supply£¬ fix the screws£¬ installation is very simple.<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>