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 audio is, the battery can last for years. Our sound box has a lot of memory and can store lots of MP3 files for loop play You can store the audio message or music you like When the battery is replaced, your audio is still safe and ready to play without re importing. Easy to Operate: First of all, you need to connect the audio playing box to the computer with USB cable, when inserted into the computer, it will -up like a U disk in the computer interface, you just need to click in, insert the audio you want, plug out the USB cable when finishing transforming When playing the audio, turn on the switch, adjust the volume, press the button to start playing the audio, if you need to switch the audio, also press the button. Nice Gift Choice: Imagine how surprised it would be if your gift is audible The sound box can be applied as a filler for stuffed toys, gift boxes, etc It will be surprising to hear audio when your family, friend or partner receives the gift This gifts can bring unforgettable memories for friend and relatives around. Wide Application: This voice audio playing box can be applied in many occasion and in many different and ways, such as creating sound frames, music gifts, stuffed animal voice buttons, custom audio buttons, etc. You can transform your favorite music, you can send gifts in to play congratulatory music, such as Christmas , New Year , birthday , etc., for the gift to add a different meaning The sound playing box has 16M memory, 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 or 2.28 x 1.85 x 0.98 inches The USB cable is about 22.3 cm or 8.78 inches in length There is a volume adjustment button that can adjust the volume, which is and small, easy to carry. Due to different product batches, the appearance may be different, which does not affect use. Colour: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 a little different from the real thing. The measurement allowed error is 1-3cm.