1.USB:You can download MP3 audio files by connecting to a computer via a MICRO-USB data cable.<br> 2.Charging indicator light:The indicator light is always on during charging,and the full light goes out.<br> 3.Play indicator light:It is always on during voice playback.<br> 4.Support downloading multiple voice files,and the next voice will be played each time it is triggered.<br> 5.8M memory,1M can store about 1 minute of audio files;the volume can be adjusted;the product comes with a 3.6V button lithium battery,which can be charged via USB.<br> Model:JR1652<br> Compatible audio and video device styles:speakers, digital-to-analog converters (DAC), players<br> Memory size:8M<br> Product name:USB sound module box<br> Sound format:MP3<br> Music time:8 minutes<br> Function:play music or sound, blessing words, play music or sound<br> Battery:rechargeable 3.6V button lithium battery (included)<br> Colour:White<br> Material:Plastic+PCB<br> Specification: A: Light Control Version/B: Keyboard Version<br> Package Contents:<br> 1 x USB sound module box<br> Only the above package content, other products are not included.<br> 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.