Features: 1.CLEAR SOUND: Dog buttons can be customized with a record button to record the sound you want for up to 30 seconds. The recording quality is very good and sounds clear. 2.EASY TO OPERATE: Voice recording button is easy to use and set up, just press the rec button to record your voice, then press the top button to play the recorded sound. 3.PORTABLE: Pet training buzzer is made of ABS material, safe and durable. Small size and easy to carry. Each recording button requires 2 AAA batteries (not included in the package). 4.PET TRAINING: You use the dog button to record specific words or phrases, such as drink, play, eat, etc. Show your dog how it works and your pet will learn how to use the button to express its needs and with you. 5.MULTI USE: Dog communication buttons can be used to record sounds to facilitate communication with your pet, as well as for children's learning, party games, Christmas gifts, and more. specification:Item Type: Voice Recording Button Material: ABS Quantity: 4pcs Color: Lake Blue, Pink, Yellow, Purple Battery Type: 4 x 2 AAA Batteries (not Included) Use: Used to Record Sound to Promote Communication with Pets PackageList:4 xVoiceRecordingButtons