The Guardline Receiver DC12V Power ACDC Adaptor with DC6V Backup 4XAAA Battery is a versatile power source for your surveillance system. With a maximum resolution of 640x480 and wireless connectivity, this receiver is perfect for indoor use. It features a 12V and 6V output voltage, making it compatible with various devices. Additionally, it is powered and has a smart home compatibility with Amazon Alexa, offering convenience and ease of use. The operating sound rating of 90 dB ensures that you can monitor your home discreetly.