Please be sure to read the profile. I purchased this for my hard-of-hearing mother and used it for about a year. I am selling it because my mother has entered a facility. Operation has been confirmed. It works on batteries, but I accidentally cut the cord of the dedicated power adapter and reconnected it. (Photo 4) There are no problems with operation. XPN Series - Brand: REVEX - Type: Wireless Intercom - Color: Red/White - Remote Control: Yes - Power Adapter: Included Thank you for viewing. - Brand: REVEX - Type: Intercom - Accessories: Transmit button, AC adapter - Color: White, Red - Button Function: Push button type Thank you for viewing.