This is a power cable that was not used when installing a Panasonic doorphone (intercom). It is a part for the VL-SWE210KLA. Since doorphone parts should be common, any of them should work if the specifications match. (This is not a guarantee. Returns are not accepted for reasons such as failure to install.) A single instruction manual is included as a bonus. I have checked carefully, but in the unlikely event of any oversight, the current condition takes precedence, and no claims or returns are accepted. Thank you for your consideration.