The light ring is equipped with 7 adjustable colors and an LED flash for visual notifications. The sleep/silent mode allows the wireless gong to be silenced for 3, 6, 9, or 12 hours, or indefinitely. Its sleek design enables a seamless transition into the style of any living environment. Easy to install and ready to use immediately after purchase. You benefit from Honeywell-ActivLink™ technology, which provides an incredibly reliable wireless connection.