Feature: 1. Multi‑function , with 1 Transmitter and 5 receivers, can find many items at the same time. 2. No APP is needed, it is simple to use and can be pressed with a touch. 3. The receiver uses a CR2032 button battery, which can last up to six months. 4. Large volume distance, up to 75‑80 dB, looking for distance diameter 15‑30 meters/49.2‑98.4in. 5. This key finder is particularly suitable for seniors or someone who loses their items often. Specification: Condition: 100% Brand New Item Type: Wireless Key Finder Material: ABS Color: As Pictures Shown Weight: Approx. 113g/4ozOperating Frequency: 433.92MHz Working Distance: About 15‑30 meters/49.2‑98.4in (open Area) Volume: 75-80 dB Transmitter Battery: CR2032 (Not including) Receiver Battery: CR2032 (Not including). Package List: 1 x Receiver Base1 x Transmitter5 x Receiver 1 x Manual5 x Keyring5 x Double-sided Adhesive Tape1 x Cover Opener