Audio & Video Cables & Adapters
JTS MA-123
JTS MA-123, Switchable attenuator for microphones, -10 dB, -20 dB and -30 dB switchable, Suitable for dynamic microphones and condenser microphones, XLR in / out, Frequency range: 22 - 20,000 Hz, Dimensions: 21 x 113 mm, Robust metal housing
https://www.bizrate.co.uk/audio_videocables_adapters/jts-ma-123-oid8729919941.html