For serious paranormal investigators, reliable audio capture is truly critical. A basic setup could include a electronic voice recorder, but think about upgrading to a professional unit with capabilities like built-in https://www.amazon.com/shop/livelife079/list/O51B9L22NYEM?tag=onamzliveli08-20&ref_=aip_sf_list_spv_ons_mixed_d&ccs_id=33e5d028-1b34-4112-9a1e-c06e129bb194