Bicycle horn electric horn electronic car bell with light /7 light 8 sound sj-10509

Bicycle horn electric horn electronic car bell with light //7 light 8 sound sj-10509

    Do manual work is delicate  Domestic waterproof design

    Very easy to install, can be installed on any type of bicycle.

    Choose a good bell, not only convenient to travel, but also greatly improve the safety of cycling!

               It's much more efficient to use 2 batteries of size 5

               The sound of the whistle is very loud, 8 kinds of whistle can be chosen, let the knight run across the world