The device shown in the circuit places the music flashing electronic ball in the hydrangea. The sound of the music can be replaced by the drum sound, the music is stopped, the length of the music can be self-adjusted, and it is random. The music flash circuit is composed of a delay-adjustable monostable circuit and a music flash generator. Copper Lugs,Copper Cable Lugs,Plating Copper Cable Lugs,Copper Tube Terminal Lugs Taixing Longyi Terminals Co.,Ltd. , https://www.longyiterminals.com