Rainproof, 3 ringtones to choose
Silicone material, nao damage to the handlebar
Super power-saving, used for one year
Specification:
Product: Bell Speaker
Model: CB1709
Material: Silicone
Decibel: 90 decibels
Types of ringtones: 3 types, long press for 3 seconds to switch
Application: road bike/mountain bike/folding bike
Waterproof: general
Power supply: button battery