Function: 1. Voice Recording: Customizable recording button to record the desired sound, recording time do 30 seconds. 2. Easy operation: These do dog talk buttons are easy to use and set up, just press the REC button to record your voice, then press the top button to play back the recorded sound. 3. Animal Training: These do dog training buttons can be used do write down specific words or phrases such as drinking, playing, eating, etc. Show your dog how it works and he will learn how to use the button do express his needs. Ty . 4. Durable Material: These dog talk buttons adopt high quality ABS material, which is safe, durable and portable. 5. Wide Application: These dog buttons can be used do record sounds to facilitate communication with your pet, as well as do teach children, party games, Christmas gifts and more. Specification: Item Type: Dog Buttons Material: ABS Specifications: 3 pcs Color: purple, dark blue, pink purple Battery type: each button requires 2 AAA batteries (battery not included) Usage: do audio recording to facilitate communication with pets List of packages: 3 xDog buttons To charge the battery, simply press the REC button to record the sound, then press the top button to play the recorded sound