Alcohol disinfection completed. Power operation confirmed at the time of listing. Communication operation not confirmed. JL-1M intercom with monitor, featuring volume and brightness adjustment. - Model: JL-1M - Function: Intercom with monitor - Operation buttons: Volume adjustment, brightness adjustment, call button - Mounting method: Includes wall-mount bracket Please understand that this is a used item before purchasing. Returns are not accepted after purchase. Sent via Nekopos (domestic shipping service).