[4-in-1 Function] Attach the 4 receivers to your key ring or other items, and simply press the colored button on the remote control to hear a beep that helps you find your missing items. It's easy to use. [Powerful & Long Range] Radio frequency can penetrate walls, floors, cushions, leather, etc., to help you find your items from a distance of up to 30 meters. [Sound and Light] The receiver emits a sound/beep to guide you to the missing item. The remote control is equipped with an LED touch light for better visibility of the button position at night. [Large Button] Large buttons are especially suitable for the elderly. The transmitter can be removed from the base and carried with you to find missing items. [Nice Decoration] This item locator makes a great decoration on your tea table, TV stand, bedside table, computer desk, or bookshelf. It's a fantastic Christmas gift for your family, friends, and even your pets.