Dr Tech Wireless Remote Key Finder Locator with 4 Receivers --Remote Control, Pet, Wallet, Key Finder, etc. The Remote finder is used for locating missing objects such as keys, eyeglass cases, television remotes, purses and other hard to find items Attach the receiver A, B, C, D to any items such as a remote, car keys, cell phone, purse, bag or just about anything and turn on the power switch on the right side of the receivers that attached to your hard to find item When you want to get your missing keys or TV remote back, you just need to simply press the corresponding A, B, C, D button on the transmitter for 2 seconds and it will voice out beeping sound. Follow the beep to find your lost objects. Loud sound that can help you find items over distances up to 100 feet (30 meters); penetrates through walls, cushions, and more 4 key ring receivers make it easy to find any of 4 different items