30 Pcs 5V Electric Magnetic Active Buzzer Continuous Beep Continuously

Feature: Material: ABS Color: Black Size: 9 x 11.8 mm (L x D) / 0.35 x 0.46 inch Rated voltage: 5V Operating voltage: 4-8V Rated current (MAX): 30 mA Min sound output at 10cm: 85 dB Resonant frequency: 2300±300 Hz Operating temperature: -27 to +70 °C Storage temperature: -30 to +105 °C Package included: 30 x Active buzzer continuous beep