Practical Voice Playing Box: Our sound playing box works with 3 batteries (not included), which can provide long-time usage. Depending on how long the o is, the battery can last for years. Our sound box has a lot of memory and can store many MP3 files for loop play. You can store the o message or music you like. When the battery is replaced, your o is still safe and ready to play without re-importing. Easy to Operate: First of all, you need to connect the o playing box to the computer with a USB cable. When inserted into the computer, it will pop up like a U disk in the computer interface. You just need to click in, insert the o you want, and plug out the USB cable when finishing transferring. When playing the o, turn on the switch, adjust the volume, press the button to start playing the o. If you need to switch the o, also press the button. Nice Gift Choice: Imagine how surprised it would be if your gift is ble. The sound box can be applied as a filler for stuffed toys, gift boxes, etc. It will be surprising to hear o when your family, friend, or partner receives the gift. This gift can bring unforgettable memories for friends and relatives around. Wide Application: This voice o playing box can be applied in many occasions and in many different ways, such as creating sound frames, music gifts, stuffed animal voice buttons, custom o buttons, etc. You can transfer your favorite music and use it to play congratulatory music for events like Christmas, New Year, birthday, etc., adding a different meaning to your gift. The sound playing box has 16M memory, can store 960 seconds of MP3 o 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 about 22.3 cm / 8.78 inches in length. There is a volume adjustment button that can adjust the volume. It is small and easy to carry. Due to different product batches, the appearance may vary, but this does not affect use. Color: White Material: Plastic Package Contents: 1 x Sound Box, 1 x Data Cable Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.