Pet communication buttons that allow you to record your voice. Set of 6. Used about 10 times, but they weren't a good fit for my pet. Hopefully, a smart dog will be able to use them! (Disinfected with alcohol) See image 4 for instructions. Also, AA batteries are not included. These are used items, so there may be differences in how the condition is perceived. Please refrain from purchasing if you are overly concerned about details. Thank you.