TRANSDUCER E/M BUZZER 2.4KHZ 87DBA; Transducer Function:Buzzer; Supply Voltage Min:4V; Supply Voltage Max:7V; Current Rating:50mA; Tones:Continuous; Sound Level SPL:87dB; Resonant Frequency:2.4kHz; Transducer Mounting:SMD ;RoHS Compliant: Yes