small circuit and a 3.7 volt rechargeable battery fitted inside the speaker casing.the charging lead and the lead to your audio device project outwards.
once the battery is fully charged, you can take it anywhere you want , anjoy the spirit of music.. you can take it to the roof, in the market, even during hiking , it is extremely light in weight and the sound is awesome!!
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.