Welcome to our shop! Introducing our multifunctional key finder set, which includes 1 transmitter and 4 receivers. This set allows you to find multiple items at the same time, making it convenient and efficient. Operating this key finder is a breeze, as no APP is required. With just one click of the button, the sound will remind you of the location of your misplaced item. The receiver uses CR2032 button batteries (not included), and each battery can last up to 6 months. This ensures long-lasting usage and minimal battery replacement. Additionally, the key finder produces a loud sound with a volume of 75-80 decibels. The search distance is impressive, reaching up to 15-30 meters (49.2-98.4 feet) in diameter. This key finder set is versatile and can be used to attach keys, wallets, remotes, glasses, phones, dog collars, or any other easily lost items. The package includes: - 1 x Base - 1 x Transmitter - 4 x Receiver - 1 x Manual - 4 x Keychain - 4 x Double-Sided Tape 100% Satisfaction: Our customers are our top priority. If you encounter any issues with the product, such as damage or incorrect quantity, please contact the seller immediately. We strive to provide you with satisfactory after-sales service.