If your MP3 player charges itself by drawing heat from your Body without any external power, will that be amazing ?
Based on the same concept, Button Mp3 is designed to charge by using user's body heat. Look wise it is designed with four function buttons on the device which resemble the stitching holes in a garment button.
After listening music all over day, you just need to put this Button MP3 under your pillow go to sleep. When you are asleep, the Button MP3 charges itself. Wake up early morning and enjoy your music.
This amazing concept is designed by Xuan Xiao, Wu Jia,Wang Junmiao,Pan Dai and He Shushu.
Source : red-dot