Product Introduction: These are completely new play toys that "evolution" old fashioned silro play. 1. Catch enemies that cannot be seen by radio waves. 2 lights and sounds "alert signal". 3 countdown time display! Reception distance is about 98.4 ft (30 "5-level warning signal" with light and sound *Response may vary depending on the surrounding environment. Set Contents: Main unit x 1, dedicated belt x 1, instruction manual (English language not guaranteed); Batteries: CR2032 coin battery (included); From Amazon, this toy has a radar function that allows you to capture the presence of the opponent that you cannot see in your eyes in the event of a radio signal in which you can see. When capturing the radio waves of your opponent with the built-in antenna, you can quickly catch the closest of the opponent with the 5 level meter and alert sounds. In this product, we call Police = Police & Thief = Runner.