MFJ-722B, Filter, CW/SSB Audio Filter, 2 Notch, Audio Amp

The Optimizer switch selectable SSB/CWfilter offers razor sharp filtering with switch-selectable bandwidths (80, 110, 50, 180Hz centered on 750 Hz), steep skirted SSB filtering.

300-3000 Hz tunable 70 dB notch filter. Plug into phone jack. Speaker. Built-in 2-Watt amp.

Headphone jack.