BowLift | USB Smart Bicycle Brake Tail Light Color:Black or outdoor excursions such as

or outdoor excursions such as hiking and surfing

Dimensions: 28cm

Designed to signal "sleep" and "wake" times clearly

complete with a playful helmet

This enchanting crystal sphere radiates a spectrum of colors

BowLift | USB Smart Bicycle Brake Tail Light Color:Black or outdoor excursions such asAutomatically turn on or off in response to motion, braking, and light intensity. Automatically enter sleep mode in order to conserve energy. To switch between modes (auto sign turning on green light, auto mode open), push the button twice. This will turn on the cycling taillight. With the included USB cord, you can charge the built in 350mAh Polymer Lithium battery from your computer, wall charger, power bank, or any other device that has a USB port.