Sony ECM-FT5BMP Back Electret Condenser Lavalier Microphone 144031783959 Unit amplifies the signal but

Unit amplifies the signal but the amplification spikes when you first turn to operate and then slowly drops about 9db

This unit does not output signal

Manufacturer Clever Devices Part Number 8014510-000 Model Number 1180 SKU 19-52010 Ref 23-73057

Manufacturer VWR Model Number Mini Centrifuge SKU 19-52810 Ref 23-73858

Sony ECM-FT5BMP Back Electret Condenser Lavalier Microphone 144031783959 Unit amplifies the signal butCondition Used Description This Electret Condenser Lavalier Microphone has been tested working onsite and is guaranteed. The unit has wear from previous use including scuffs and scratches. Includes only the Electret Condenser Lavalier Microphone, No accessories. Photos are of the actual unit for sale. Inventory is on hand and ready to ship. Please feel free to message us any questions you may have. Thank you for checking out our listing. Specifics