Uniclife Key Finder Wireless RF Item Locator, Remote Control, Pet, Cell, Wallet Locator with 4 Receivers Total 4 stylish receives, 1 RF transmitters, operates up to 130 feet. One press on button, the loud beeping sound will lead you to your lost items though walls, cushions and doors. Find lost keys and items such as Remote control, wallet, card, pet, and cell. Low consumption, long standby time, CE, RoHS, FCC approval. Free lifetime technical support and 12 Month Replacement Warranty from Uniclife. The strong radio frequency penetrates walls, leather, door and so on. Letting you quickly find your missing item in a range of up to 100 feet whether it&#039;s in another room, lies on the couch cushion, or hides under a blanket. The Model 04B key finder possesses bright colors, small sizes, and concise shapes. Measures 2 x 1.5 inches and weighs only 0.45 ounces. The receivers emits a loud beep sound up to 80 dB which makes you easy to locate lost objects. Blinking Red flashing light will also help you find items in dark areas.