Features:
Clear Sound: The bike horn is compact, and the sound made by it is very loud and clear, which is practical.
Great for Cycling Press and hold the button to make 6 different sounds, which increases safety of cycling.
Practical Button: The sound button is very comfortable and sensitive.
Waterproof and Premium: The bike horn features the beautiful appearance, meticulous workmanship, and it is life-grade waterproof, so it can also be used in rainy days.
Easy to Install: The bike horn can be installed on any bicycles, which is suitable for bicycles with a handlebar diameter of 20-25mm/0.79-0.98in(about).

Specifications:
Material: plastic
Main color: black
Power supply is 9V battery (included)
Suitable pipe diameter: about 20-25mm/0.79-0.98in
Cable length: about 30cm/11.81in
Size: about 90 x 55 x 55mm/3.94x2.17x2.17in
Net weight: about 108g

Packing List:
1 x Electric Bicycle Horn
1 x Mounting Bracket