Practical Voice Playing Box: Our sound playing box operates with 3 batteries (not included), providing extended usage. Battery life can last for years depending on audio length. The device features ample memory to store multiple MP3 files for continuous loop playback. You can save your preferred audio messages or music. Audio files remain secure and do not need re-uploading when batteries are replaced. Easy to Operate: Connect the audio box to a computer using the included USB cable. Once connected, it appears as a USB drive on the computer interface. Simply open the drive, add your desired audio files, and safely eject the device after transfer. To play audio, turn on the power switch, adjust the volume, and press the button to start playback. Press the button again to switch between audio files. Nice Gift Choice: Add a personal touch to your gifts with audible messages. This sound box can be integrated into stuffed toys, gift boxes, and more. It creates a surprising and memorable experience when family, friends, or loved ones receive a gift that plays sound, making it a thoughtful and unique present. Wide Application: This voice playing box is suitable for various uses, including sound frames, musical gifts, voice-enabled stuffed animals, custom audio buttons, and more. You can upload favorite songs or personalized messages for special occasions such as Christmas, New Year, birthdays, and other celebrations, adding a meaningful touch to your gifts. The sound box has 16MB memory, capable of storing up to 960 seconds of MP3 audio or 2400 seconds of WMA audio. Dimensions: 5.8 x 4.7 x 2.5 cm (2.28 x 1.85 x 0.98 inches). USB cable length: approximately 22.3 cm (8.78 inches). Features a volume control button; compact and portable design. Note: Appearance may vary slightly between product batches, but this does not affect functionality. Color: White Material: Plastic Package Contents: 1 x Sound Box 1 x Data Cable Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement tolerances are within +/- 1-3 cm.