TRU COMPONENTS Microphone capsule 4.5 - 10 V DC Frequency range=450 Hz (min)

Connection (components): Print; Impedance (num.): 2200 Ω; Max. operating voltage: 10 V DC; Min. frequency: 450 Hz; Min. operating voltage: 4.5 V DC; Plastic free packaging: Plastic-free packaging; Product size (height): 4.5 mm; Product size (Ø): 9.7 mm; Sensitivity: -41 dB

Price: 1.49 from Conrad Electronic