This is a strange and amusing kit! Just connect the battery and it happily emits a strange high pitched squeal once every minute. If you’re not the one that hid the Secret Squealer it’s pretty difficult to find because it only squeals for a second then it is quiet again until its 1 minute rest period is over! Size of board: 2? x 2.25?.
Complete with all parts PC board and instructions. Skill Level 1.