Mini Microphone M30

M30 , Specifications:, Bluetooth version: Bluetooth 5.0, Wireless range: ＞10m (33ft), Music time: Up to 5 hours + 20 hours( with the charging case),

MPOW M30 True In-Ear Mini Earbuds Bass ,Wireless Bluetooth 5.0 Earphones , IPX7 Waterproof , Charging Case, 25 Hours Playtime, ,Microphones Black

Tracer

2PCS Advanced Hot Shoe to Universal Shoe Adapter for Canon VIXIA HF 200 S100 M30

Earthworks Audio M30 Omnidirectional Measurement Microphone : Musical Instruments

Earthworks M30 30kHz Omnidirectional Measurement Microphone

Earthworks M30 30kHz Omnidirectional Measurement Microphone

Mini Microphone M30

Earthworks M30 30kHz Omnidirectional Measurement Microphone

Earthworks M30 M Series Omni Measurement Microphone : Musical Instruments

2 Prong Pin Corded microphone mic. This was from estate sale from old fella that collected and used old tech. Will work perfect.

VTG Vintage Jasco 2 Prong Pin Corded microphone mic Gold Mesh Cover Mini Small

Tws M30 Bluetooth Earphones True Wireless Stereo Earbuds Sports Headsets with Microphone Gaming Headphones for Mobile Phone - China Earbuds and Tws Earbuds price

The M30 is an affordable, reliable 30 kHz reference microphone. It utilizes a very small, very accurate omnidirectional element, a carefully crafted stainless steel body, and innovative circuitry to deliver flat, time coherent response from 9 Hz to 30 kHz. The M30 has become the defacto standard reference for Smaart, MLSSA, SIMM and TEF. The M30 is the most cost-effective measurement microphone which you can trust. It exceeds the specified requirements for al audio band measurement systems.