100% brand new and high quality.
When you brake, the light will turn on (without on/off switch button).
The perfect accessory for outdoor biking or hiking.
With ultra brightness red LED light.
Warning behind vehicles keeps a safe distance.
Easy to install.
Waterproof design, circuit with special treatment, normal use on a rainy day.
Item type: bike brake light
Light color: red
Suitable for: V-shape brake
Battery: 1pc of CR1025 battery (included)
On/off switch button: no
Package includes: 1 x bike brake light(battery included)