TRANSDUCER BUZZER 2.73KHZ 85DBA 4V; Transducer Function:Buzzer; Supply Voltage Min:2V; Supply Voltage Max:4V; Current Rating:80mA; Tones:-; Sound Level SPL:85dB; Resonant Frequency:2.73kHz; Transducer Mounting:SMD; Colour:Black ;RoHS Compliant: Yes