SUNDING SD-603 Waterproof Loud Cycling Electric Bicycle Horn Password Bike Handlebar Ring Bell Alarm Cyclist Accessories Speaker

Model Number: CQ743
Type: Electric Horn
Size: 6*4.2 cm
Material: Plastic
Certification: CCC
Brand Name: TOMOUNT
Battery: LR444 (Included)
model: SD-603
material: Plastic
color: Black
size: 6cm(Length)*4.2cm( Diameter); Length of cable: 18cm
battery: LR44*4 (Included)