I run mine off a 33 foot cable and it works perfect. I do not like to stand too close to the amp and that is why I use a long cable.
It is powered by a 9 Volt battery which is included with the switch. I have seen some reviews were some are not happy about having to use a battery. I personally like the fact it is run by a battery as then no need to hook it up to a power supply. I am not sure how long the battery will last but no big deal as one can buy a few rechargeable 9 Volt batteries.
I use this switch with the Boss Katana - 50 MK11 Amplifier which has 4 channels that one can program to various amp settings.
After buying the switch with only two foot switches I assumed that one can only access two channels and not 4 and then thought I should have looked for a switch with 4 switches on it. However it access all 4 channels
At the back of the switch are 3 locations to plug the cable into as A or B or AB. To access both Switch A and switch B, one just needs to plug the cable into the middle AB input .
A basic guitar cable will psychically fit but will not work so make sure you get the right type of cable. The cable will have two black lines, separating 3 sections. I bought mine from 鶹.ca..
At the back one can flip a switch from "Momentary" to the “Latch” position as if not, one will not be able to access all 4 Channels. With Latch mode, one pushes the switch down, and a channel is then locked in and when one pushes the switch again then the channel is no longer locked in.
With the momentary setting one must constantly have the switch held down and that is why one could not access 4 channels unless one can push all switches down at the same time.
Have not had this switch a long time or used it a lot but so far I am 100% happy with it and would easily recommend it to anyone. Shipping was also very fast and we all like that.