Powerful sound & long distnace range: The beeping sound of Key Finder up to 80db and 100ft wireless range in open area and 85 feet where wall gets in between.Perfect for use indoor or in the garden and yard . Super convenient and helpful in your daily life! | Upgrade quality batteries: Key Tracker ! 6 batteries included! Life up to 6-12 months with an easily replaceable CR2032 battery. Low consump