Welcome to Adventure: This equipment set is designed for curious people who are to the world; it includes 1 radio (built-in lithium battery), 2 luminous cat balls (each contains 3 button batteries), and 1 loudspeaker (built-in lithium battery). It can not only as a means of detecting paranormal phenomena, but also a potential way to communicate with others. Box Features: Our Equipment is compact but powerful, and can detect things; it is designed to be portable with high reception sensitivity; fast response and radio-enhanced audio allows interaction with entities; the Box receives an impressive range, including FM1:64-10 8MHZ 8MHZ, FM2:87-108MHZ, AM:520-1710KHZ, with additional antennas available. Box Radio Zoom Experience: The box radio in our suit also comes with a loudspeaker to enhance the audibility of any potential information on the other side; this compact and versatile device also comes with an audio interface of about 3.5mm, making it easy to compatible with multiple media devices. Interactive exploration with cat balls: Discover interesting events by including 2 cat balls; when applied to sensing the existence of ghosts, these balls emit light or sound to remind the user; they can also as possible of existence, thus enabling more interactive exploration. Simple and effective operation: Each of our survey equipment is designed to operate directly; no complex procedures hinder your exploration, and even non-skilled users can conduct surveys smoothly; whether it is a radio or a speaker, the environment can be automatically detected by simply pressing the switch button. Color:As Shown Material:Metal Package Contents: 4 * Device Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.