Regarding this product, first, open the three buckles of the flashing bouncing ball, then open the battery cover.
Correctly install the four 5# batteries, clamp the buckles tightly, and press the switch to make a sound.
Specifications:
Product Name: Electric Flashing Jumping Ball
Product Size: 12.5*12.5CM
Function: Electric Flash Music
Color: Blue & Pink
NOTE: Batteries are not included.