1. Materials: Using the new best chip makes the recording sound clear without noise, very loud and clear, the case is super durable plastic, durable2.Recordable buttons for dogs: Can record up to 30 seconds, can record a variety of content to train your dog to talk and interact with3.Dog training buttons: Is a training process that requires the owner to take the dog to exercise repeatedly so that the dog remembers which button to press will get what such as eating, going out to play, etc.4.Buttons for communication: Many interesting interactions can be carried out through buttons, which can be used in classes, games and as a way of communication for autistic children. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and well make you feel satisfied.