Purchased on Amazon in May 2025. The gray and yellow ones have been opened, but the gray one was used a few times for recording, while the yellow one had batteries inserted but was unused. The remaining two and other accessories are unopened and unused. The two opened ones have batteries inserted, so their operation has been confirmed. Please consider purchasing only if you understand the current condition. MEWOOFUN Dog Recording Buttons, Talking Buttons, Voice Buttons, Bells, Communication, Training, Educational Toy, 4-Color Set [Talking Buttons for Medium to Large Dogs] MEWOOFUN dog recording buttons are an interesting communication tool. You can record messages or commands and train your dog through repetition to teach them how to express their feelings. [Facilitates Communication] The buttons for recording voices can improve the interaction between owners and pets. You can discover how intelligent your dog is by identifying their needs through the color and position of the buttons, as well as the sounds. Equipped with high-quality microphones and speakers, the buttons provide clear audio and loud volume. [Easy to Use] Press the "REC" button and start recording your voice message within 20 seconds after hearing a single "beep." When recording is finished, release the REC button; you will hear "beep, beep" sounds to indicate the recording has ended. Pressing the top button will play the recorded audio. [With Non-Slip Mat] Made of high-quality rubber material and easy to clean. The buttons are secured to the mat with Velcro to prevent them from sliding on the floor or mat. If you don't use the mat, the silicone pads under the buttons can also reduce friction with the ground to some extent. [Safe Material] Made of high-quality ABS plastic and non-slip rubber mats. The package includes an instruction manual, dog talking buttons, mats, stickers, Velcro, and a screwdriver. Note: You will need to provide two AAA batteries yourself. The item will be shipped by wrapping the product box in plastic. Please be aware that the box may be dented during shipping. Returns are not accepted after purchase, so please be aware of this in advance.