The new professional telephone voice changer is portable and compatible on all telephones.

Simply attach the acoustic coupler to your telephone’s handset, adjust the selector switch and your voice is immediately disguised.
This unit uses the latest digital signal processing technology for unsurpassed clarity.
There are 14 different programmable voice settings (7-high, 7-low) plus a normal mode, and its built-in microphone offers ultra-low distortion.
The Portable Voice Changer is housed in a sturdy metal case, and comes in a zippered vinyl pouch for portability.
Uses one 9 volt battery (not included).
Approximate dimensions: 1.12" x 2.75" x 5.37".
Weight: 10 ounces.