DX DELCATEC wireless intercom DWP10A1 (door station and main unit set). It's a DECT-compliant digital system, and the sound is quite clear for an intercom. It's audio-only; there's no camera. It's wireless, so installation is very easy. Included accessories are the main unit + AC adapter, door station + base, and instruction manual. The condition is as follows: the door station was installed outdoors, so it shows some wear. The main unit has yellowing due to sun exposure. Since it's wireless, the door station uses batteries (3 AA batteries). For more information about the product, search "DPW10A1" on Google, and the manufacturer's website will be at the top. You can download the instruction manual from there. 251217