This anti-lost device is made of ABS material, comes with a keychain for easy carrying. Wireless connected to the cell phone to track any object. Effectively protect kids, seniors, elders, car key, luggage, wallet, pets, dogs, cats from being stolen or lost within 7-30 feet effective distance range. Your phone and this tracker will automatically and simultaneously ring for a timely warning when out of this range. 1 1/2" L x 1 1/2" W x 1/4" Thick
