The Jalo Kupu Dark Gray is about functionality and looks. In addition to its ability to detect smoke, its satin fabric also makes it look nice. Attach the smoke detector to the ceiling using the tape included, so you won't have to drill any unnecessary holes in your ceiling. Turn the smoke detector on with 1 touch of a button. When the sensor detects smoke, it produces an 85-decibel audio signal. You don't need cables to let the smoke detector do its job, because it runs on 3 lithium batteries (included by default).