The Whirlwind AB Selector is a noiseless switching box that can function as a single guitar sending signal to 2 amps, or 2 guitars in a single amp. 

• Specs & Features
• • The only A,B A+B switch with patented noiseless optical switching.
  • Functions as a 2 to 1, or a 1 to 2 switch 
• Controls
• • A/B Selector Switch 
  • "Both" Switch to run both channels simultaneously. (This is not recommended when using 2 guitars to one amp)
• Connections 
• • 1/4" I/O Jack - This jack fucntions as an input jack when running one guitar to 2 amps, and an output jack when running two guitars into one amp. 
  • 1/4" A & B  Jacks - outputs to an amplifier when the unit is being used as a 1-in, 2-out device or as inputs from musical instruments when the unit is being used as a 2-in, 1-out device.