Function: 1)When turn on the button it will flash digital logo in the ball(we can make the logo according your design). 2)When it turn on,it still can sound music as you wanted. 3)The Hotest- Super Quality- 10 LED LED Magic Spinning Ball, Heart and Christ Star inside available 10 LED lights total, available in Red, Green, Yellow, Blue, Jade, White Attached with Black Wrist Lanyard, works with 3*AAA batteries, already included, changeable Different Surface treatments are available according to your special order. It can be play for children and the people in disco.