Product description<br> <br> Specifications:<br> Product Name : Electronic Buzzer<br> Sound pressure level: greater than 70db<br> Rated Frequency :400 Hz<br> Rated Voltage : DC 1.5V<br> Rated Current: less than 20mA<br> Operating Voltage: 1-3V<br> Drive: mechanical<br> Shell Material: Plastic<br> Overall Size : 23 x 17x 15mm / 0.91x0.67x 0.59Inch (LxWxT)<br> Colour: Black<br> Package Content :2PCS Electronic Buzzer