Musical Instrument & Vocal Microphones
Riedel Pro-D1 XLR4F
Riedel Pro-D1 XLR4F, Single-Ear Headset (listen-talk combination), 270° Rotatable microphone boom for right or left use, Neodymium magnet system, Frequency range earpiece: 10 - 30000 Hz, Earpiece impedance: 250 Ohm, Max. SPL receiver: 100 dB,...
https://www.bizrate.co.uk/musicalinstrument_vocalmicrophones/riedel-pro-d1-xlr4f-oid25286127007.html