Practical Voice Playing Box: Our sound playing box operates with 3 batteries (not included), providing long-term usage. Depending on audio length, battery life can last for years. The device has built-in 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 playing box to a computer using the USB cable. It will appear as a removable drive on the computer interface. Simply open the drive, add desired audio files, and safely eject after transfer. To play audio, turn on the power switch, adjust volume using the control button, and press to start playback. Press the button again to switch between audio files. Nice Gift Choice: Add a personal touch to gifts with audible messages. The sound box can be integrated into stuffed toys, gift boxes, and more. Surprise loved ones with a unique audio experience when they receive their gift. Create lasting memories with thoughtful, customized presents. Wide Application: This voice audio playing box is suitable for various uses such as sound frames, musical greeting cards, interactive toys, custom audio buttons, and special occasion gifts. Play personalized music or greetings for events like Christmas, New Year, birthdays, and more, adding emotional value to your gift. The sound playing box has 16M memory, capable of storing up to 960 seconds of MP3 audio or 2400 seconds of WMA files. 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. Equipped with a volume adjustment button; compact and portable design. Note: Product appearance may vary slightly due to different manufacturing batches, but this does not affect functionality. Color: White Material: Plastic Package Contents: 1 x Sound Box 1 x Data Cable Only the items listed above are included. Note: Lighting effects and screen settings may cause slight color variations between the image and the actual item. Measurement tolerances allow for +/- 1-3 cm.