1. Due to international transportation issues, the package does not contain prohibited items such as wax, paint, batteries, etc. You can use candles instead. Even if you don't use it, it still works fine. Feature: ?Dog Talking Buttons with Mat?Dog recordable button is an interesting communication tool. Recording any message or commands to repeated train your dog and teach them how to express mind. Velcro which have higher viscosity and stronger adhesion could keep the button firmly on the dog talking button mat to avoid it sliding on the floor or mat. ?Make Communication Easier?Enhance the interaction between owner and pet by voice recording buttons. You will find how smart your dog is, they could identify needs by button color/position or voice. Our buttons have top quality microphones and speakers, so you can get the clear sound and better volume. ?Easy to Use?Press the "REC" button and start recording your voice message of 20s or less after hearing a single "beep". Release the 'REC' button after finishing recording and you can hear "beep-beep" to signify the end of recording. Press the top button to playback the recording voice. ?Non-skid Dog Button Mat for Ease of Training?The dog communication buttons mat is made of quality rubber material, so easy to clean. Attaching buttons to the mat with velcro could avoid it sliding on the floor or mat. If you don't use the mat, the silicone pads which at the bottom of button also could reduce friction with the ground to a certain extent. ?Safe Material?Made of high quality ABS plastic and non-slip rubber mat. The package include manual, dog talking buttons, mat, sticker, velcro screwdriver. Notice : 2 AAA batteries need to be prepared by yourself.