3-In-1 Wireless Bike Light Set Blue Upgrade Adult Helmet One-Handed Operation: The smart linkage

One-Handed Operation: The smart linkage design allows you to mount or remove your phone with just one hand

Protective Soft-Covered HooksSilicone-covered hooks prevent scratches and protect your bike's frame

Seatpost: Integrated with Saddle

and fast flashyou can customize brightness based on terrain and traffic conditions

Bottom Bracket: 68mm L:124

3-In-1 Wireless Bike Light Set Blue Upgrade Adult Helmet One-Handed Operation: The smart linkageFeatures: Multifunctional three in one design: code meter, front light, and speaker Wireless transmission for accurate and complete data Integrated 120 decibel electric speaker with three sound options USB link for controlling lights and speakers Long press for ten seconds to switch sound High brightness T6 double lamp holder Specifications: Light Source: T6x 22 Brightness: 800 Lumens Waterproof: Life Level Waterproof Built In Battery for Headlights: