1MULTIPLE APPLICATIONS: Key finder, which includes 4 receivers, key ring and double sided sticker easily attaches to keys, TV remotes, cell phones, purses, pets, luggage, or any other item that is easy to lose. Compact and lightweight, easy to install and use. 2EASY TO USE: No cell phone or app required, great for seniors. Simply press the appropriate color coded button and the receiver will beep to help you find your lost keys. The transmitter also features LED flashlight for finding items in the dark. 3LONG BATTERY LIFE: Key locator has 4 built in CR2032 batteries, premium batteries with long battery life, no need to replace them frequently, which can extend the life of the device. The transmitter is powered by 2 5V AAA batteries (not included). 4100FT TRACKING RANGE: With remote key finder, you can find lost items from anywhere. With advanced RF technology, it can penetrate wall, doors, cushions and furniture to assist in long range tracking up to 100ft. Wall and other obstacles may affect the signal strength, you can relocate and press the transmitter button several times until you hear a signal. 5IDEAL GIFT OPTION: The convenient wireless key locator is designed to take the hassle out of finding lost items. This is the ideal gift choice for your loved ones on scenes such as Father's Day, Mother's Day, Thanksgiving, Christmas, Easter, Halloween and birthdays.