Talking Recorded Buttons for Your Dog Communication Training at Home!??effectiveness of science the dog will quickly learn to use the buttons if the training process is carried out systematically andusing positive reinforcements such as rewards or praise?? high quality sound and recording high-quality microphone and speaker guaranteeclear and crisp sound of the message?? ease of use the buttons are easy to use,just press the REC button, record a message and the button is ready to use??the dog can easily press buttons with his paw because they are adapted to gentle pressure,make it easier for the animal to quickly learn their effects?? solid construction ensures their durability, even when used intensively by the dog, made of durable materials, they are resistant to accidental falls, paw pressure and even gentle biting,remain reliable for a long time??safe material the buttons are made of safe, non-toxic material,ensures the health of the dog? Kit specifications:button size: 8.8 cm x 4 cmweight: 0.224 kgweight in package: 0.3 kgmaterial: ABS, rubber? Included in the set:base4 buttonscolorful packaging