Practical Voice Playing Box: Our sound playing box works with 3 batteries (not included), providing long-lasting performance. Battery life can last for years depending on audio length. 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 when batteries are replaced, without the need for re-uploading.Easy to Operate: Connect the audio playing box to a computer using the USB cable. It will appear as a removable drive on your computer. Simply open the drive, add your audio files, and safely eject the device after transfer. To play audio, turn on the 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 recorded audio. The sound box can be placed inside stuffed toys, gift boxes, and other creative applications. Surprise friends and family when they hear a personalized message upon receiving their gift. Creates memorable and meaningful gifting experiences.Wide Application: This voice playing box is suitable for various uses such as sound frames, musical greeting cards, interactive toys, custom audio buttons, and holiday gifts. Play personalized music or messages for occasions like Christmas, New Year, birthdays, and more, adding a unique sentiment to your presents.Specifications: - Memory capacity: 16MB (stores up to 960 seconds of MP3 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: 22.3 cm (8.78 inches) - Features volume control button - Compact and portable design 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. Allowable measurement error is +/- 1-3 cm. Product appearance may vary slightly by batch, which does not affect functionality.