The Wollensak 2873AV is a professional-grade audio cassette player-recorder that can be synchronized with compatible slide and filmstrip projectors that have a remote facility.
It enables the user to create sophisticated A-V presentations by automatically synchronizing recorded narration with image-sequence. The 2873 uses a standard audio cassette. This item powers up and plays and records tapes. However, it is being sold as is with no warranty. No manual or peripherals are included.