4 Key Finders with Sound: Can't find your lost item? Choose the Reyke Item Key Locator, just press the button and follow the beep! You'll never lose your valuables. Comes with 4 receivers, keychain rings and double-sided tape, can be attached to keys, TV remotes, cell phones, wallets, pets (cat trackers), luggage or other valuables that are easily lost.80db+ Beep and LED Flashlight: No phone or app required. Just press the corresponding color-coded button and the receiver's beeps will help you find your lost car key. Built-in LED flashlight helps locate lost items in the dark.Extra-Long Battery Life: Tired of changing batteries frequently? Premium batteries included to support your device for longer life. Package includes: 4 x CR2032 receivers and 2 x 1.5V AAA batteries for transmitter.Long Range Tracking Up to 131 Feet: With the Reyke remote detector, you can find your lost items no matter where they are. RF easily penetrates walls, cushions and doors, key and wallet trackers up to 131 feet. (Walls and other obstructions will reduce sound levels)