The Benfox Dual Tone Generator is a double square wave generator.
Each generator covers a range of frequency going from approximately 55Hz to 5500Hz. 
It can be connected to a amplifier or a mixing board  with a 1/4 inch jack plug.
The Dual Tone Generator has 6 knobs:
-  Tone I / Tone II: Frequency tone adjustment
-  Mess I / Mess II: Fine adjustment and addition of noise. Can be adjusted to make white noise or even beats
-  Mix:  Mix between frequency of I and II
-  Volume: Volume adjustment
The Dual Tone Generator uses only the highest quality of components -- it is sure to last a very long time!
Made in France by Benfox.
    
    
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