2 Way Stereo Speaker Switch Box with mounting screws Select Speaker Set A, B or A+B Note: Speaker Selector is Limited to 10 watts per channel continuous music power Includes Instructions: please follow carefully Screw Down Terminals Hi, we have for sale a new Stereo Speaker Selector Box. Switch an audio source from Speaker Set A to Speaker Set B or Combine Both (A+B Speakers please check for impedance compatibility with your amplifier when using A+B). This can be useful if you have speakers wired to another area in your home but have one audio source.