Operating Search Frequency: 2.4kHz quartz crystal controlled Searchcoils: 8-in MegaDEPTH heavy-duty Headphone Transducers: Permanently encapsulated high-output piezoelectric Audio Frequency: 400 Hz Headphone Earcups: Heavy-duty polymer full ear surround; extra comfortable soft cushions, ambient noise blocking up to 24 decibels, heavy-duty ear-to-ear wiring with heavy-duty ear-to-ear wiring for added strength; special connectors for interchangeable searchcoils and [...]
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