why is there 3 input things
1499506
Very observant! To facilitate the microphone and remote control signals, such as pause, skip forward and back, etc., you need an extra contact. Headphones without the mic and remote control only have the L & R and ground. The jack with the triple contacts gets plugged into the iPhone or iPod where it makes the proper connections and the jack with the dual contacts goes into the headphone where it only needs to make Left, Right and Ground connections. Hope this was helpful.
1300322
One input on the first right front and output from the second right front onward.
2020252
There are two 1/4" inputs. One just says "input." The other says "control input." Not sure what that means.. if that's another way of saying "aux" or not.
211360
I agree with previous responses. There are two female inputs (L and R) labelled Line In on the back of the unit. Good luck.
1755038
Monitor has 2 Video Inputs. The Monitor has function keys that can be switched to either video input at a time but not both inputs as the same time.
70709
No I don't believe this what your looking for. This has 1 input , 2 outputs.
1800354
There are two separate inputs. One specifically for a Mike and 1 for guitar.
1165961
No you cannot. The device has 4 inputs, but only 2 can be used simultaneously.
1969860
No it is 3 inputs and one output what would you have 3 outputs for 3 screens or 3 tvs This allows you to hook up 3 different items to one tv input Sorry but hope it helps
683024
Theres a small Input button under the monitor next to the power button that lets you switch between your different inputs.
124726
Yes. There are two built in and inputs for two additional external devices.
2042436
There is a 3-position switch On {mouse function} Off and On {Mouse function with LEDs}
324606
There are two optical audio inputs, so that you can switch between two input devices. The remote has push buttons to select input source 1 or 2.
1538706
I don't have the unit with me, so can't test to find out for you - I've not tried two inputs at same time. Both come with the unit.
702272
Both inputs seem to be the same. I used the yellow as the main input and the white as a secondary input. However, I don't see a difference.
829141
It has one input and four outputs If it had four inputs and one output it would be called a switch. Amazone sells switches also.
298368
I went back to the manual to answer this. U can enter as little as a 3 digit combination up to a maximum of 6. But they are better described as inputs since each input can also be a combination of 2 or all 4 buttons pressed together at the same time. So it is pretty impossible to get into this thing if u don't know the combo. As far as invalid entries go, it just beeps quickly 3 times and the LED light blinks red instead of green when the wrong inputs are entered. U can try again immediately without having to clear anything. Takes like 1 second and u can try again. This thing rocks.