Practical Voice Recording Box: Our sound box operates on 3 batteries (not included), providing extended use. Depending on the length of the audio file, the battery can last for years. Our sound box has ample memory and can store numerous MP3 files for loop playback. You can store your favorite audio messages or music. When the battery is replaced, your audio remains safe and ready to play without re-importing. Easy to Use: First, connect the sound box to your computer via USB cable. It will appear as a USB drive in your computer interface. Simply click on it, insert the desired audio, and unplug the USB cable once the transfer is complete. To play the audio, turn on the power switch, adjust the volume, and press the button to start playback. Press the button again to change the audio. Wonderful Gift Choice: Imagine the surprise when your gift is audible! The sound box can be used as a filling for plush toys, gift boxes, etc. It will be surprising to hear sounds when your family, friend, or partner receives the gift. These gifts can create unforgettable memories for friends and relatives. Wide Application: This voice recording sound box can be used in many occasions and in many different ways, such as creating sound frames, music gifts, plush animal voice buttons, custom sound buttons, etc. You can transform your favorite music, you can send gifts to play congratulatory music, such as Christmas songs, New Year's songs, birthday songs, etc., to give the gift a different meaning. The sound box has 16M of memory and can store 960 seconds of MP3 audio files and 2400 seconds of WMA files. It measures 5.8 x 4.7 x 2.5 cm/ 2.28 x 1.85 x 0.98 inches. The USB cable is approximately 22.3 cm/ 8.78 inches long. There is a volume adjustment knob that can adjust the volume, which is small and easy to carry. Due to different product batches, the appearance may be different, which does not affect the use. Color: White Material: Plastic Package Contents: 1 x Sound Box 1 x Data Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.