Relacart BM-111 Wired Boundary Microphone

Model: RELA-BM-111
Part Number: BM-111
Brand: Relacart

The BM-111 is a capacitive interface microphone. It is designed for ceiling or desktop fixed installation. All microphones have good RF shielding effect, which can effectively isolate the RF interference of various wireless communication devices (such as mobile phones).

Product Specifications

Radio head	backplane polarized electrostatic capacitive type
Pointing characteristics	hemispherical (unidirectional)
Frequency Response	80-18,000 Hz
Turn-on sensitivity	18 mV/Pa =-34.4 dBV
Output impedance	<200 ohms
Maximum withstand sound pressure	106 dB [SPL@1%THD]
Signal-to-noise ratio	68dB, 1KHz at 1Pa
Noise voltage	6.0 μV [A]
Phantom Power	DC 12-52V
Current consumption	4mA (typ.)
Output connector	built-in 3-pin XLR male
Weight	about 95g
Volume	Length: 75mm Width: 20mm (copper tube), 39.5mm (microphone ring)