Product Features: 1.Adopt 3.5mm plug, solid and durable. 2.DC 5V to 12V alarm siren with 3.5mm plug connector. 3.The sound is 120 decibels, it's loud even at 5V DC. 4.Made of ABS plastic, wear resistance, impact resistance, heat resistance, low temperature resistance. 5.Can mount by sticker or screws,equipped with sticker on its bottom, very easy to install. s: 1.This product can be used with your system to respond to signals from the alarm keypad/console . Specifications: Material: ABS plastic Color: Red-black Length of Wire: 1m Sound Level: 110dB Voltage: 12V Standard Current: 320mA Weight: 132g Diameter: 50mm, height: 52mm Installation method: wired Package information: Package size: 6x6x6/2.36x2.36x2.36in Package weight: 132g/4.66oz Ploybag Package Package Included: 1 x DC Electronic Buzzer Alarm Siren Security Horn Safety Warning 1.Don't put it beside the high temperature condition. 2. Don't throw it into the fire. 3. Do not throw it into water. Note: The data is all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be some difference of color, the actual object received shall prevail.