battery light consists of a senve-colored flash cassette mechanism and a little football or a pvc sphere .at the bottom of the cassette mechanism ,the are two touching points .the facility will flash in seven colors once touched .the touching battery light can be put on the desk ,bed end ,or in the bar ,caffee for decorativeness.also ,it can be put in the pool,streem,and even sea to float with flashing lights as a decorative gift to enhance the seasons atmosphere.specification :sphere dia:70-80mm,3LED(green,red ,blue),a controler.