DV-918
·Energy conversion mode: capacitive
·Frequency response: 30Hz-20KHz
·Directivity: unidirectivity
·Output impedance (ohm): 75 Ω
·Sensitivity: - 45dB
·Power supply voltage: phantom 48V (phantom refers to transmitting both current and sound)
·Output and indication: balance, seat lamp, with light ring display
·Anti mobile phone, electromagnetic and high-frequency interference