Size: 9x9x4cm Weight: Net weight 79 grams per unit Training Your Pet to TalkThe 4 dog talking buttons will be a great dog training tools to get your dog to speak to you.Each dog button requires 2*AA batteries to be used (not included) Loud and Clear VoiceUnlike other older versions, our buttons for dogs to press to communicate allows you to record a 30s loud and clear voice to better communicate with your pet. Communication Emotional communication lies in understanding each other. Communicate effectively with your pets and enjoy each other year after year. Large Button But Press Easily This dog buttons can be easily pressed, even for small dogs. The large buttons and high quality materials also ensure that talking dog buttons will not be easily damaged by dogs. Dog Training & Behavior AidsThe great dog training buttons will help your dog maintain good behavior and deepen the bond between you and your dog. Please check the back of the box for training instruction steps.