Feature: 1. EASY TO USE: This key finder can help you solve the problem of losing things. Simply press the button and follow the beeps. You will never lose your valuables again. 1 Transmitter and 8 Receivers. No smartphone required, easy to use. Suitable for senior citizens. 2. RECEIVER DESIGN: These 8 receivers are only 0.5cm thick, compact and portable, and can be connected to keys, TV remotes, cell phones, wallets, car keys, luggage and more. 3. REMOTE OPERATION: No matter where your lost products are, you can find them with item locator. The RF can easily penetrate wall, mats, leather and doors to locate your lost items within 30~40 meters. 4. 80DB LOUD SOUND: Find your items quickly and easily with the remote control. When you press the button on the remote control, the same color receiver will emit an 80 dB beep. 5. IDEAL PRESENT: The key finder helps you avoid the hassle of searching for lost items. This is the ideal present for loved ones on Father's Day, Mother's Day, Thanksgiving, Christmas, Easter, Halloween and birthdays. Specification: Item Type: Key Finder Material: ABS Weight: Approx. 136g/4.8oz Usage: Wireless Finder Can Help You Easily Find Lost Keys, Remote Controls, Wallets, Glasses, Canes and Other Easily Lost Items. Sound: ≥80db Working Range: Approx. 30~40m/98.4-131.2ft (Open Space) Frequency: 433.92 MHz Receiver Battery: Button Batteryx8, CR2032 (Shipped Without Battery) Transmitter: Dry Cellx2, AAA (Shipped Without Batteries). Package List: 1 x Transmitter (Battery Not Included) 1 x Base 8 x Receiver (Battery Not Included) 2 x Sticker 1 x Instruction Manual 8 x Double Sided Tape 8 x Key Ring