QSR-4310B Active Buzzers (DC 12V / 2 PCS)
Model: QSR-4310B - Color: Black - Material: ABS + copper - Rated voltage: 12V - Max. voltage: 30V - Max. rated current: 3.5mA@12V 1.8KHz - Sound pressure level: 85dB@12V 1.8KHz (minimum) - Resonant frequency: 2.8 +/- 0.5KHz - Working temperature: -20~60'C - Cable length: 15cm - Perfect for DIY project - Comes with 2 pieces per pack