• It is made of high-quality PC+ABS material, which is hard, resistant to shock and very durable
• Only need to complete the easy installation steps
• High brightness, with colorful light effects, it is bright enough for cycling, hiking, camping, or any outdoor activity at the dark condition
• This is great for cycling at night or in places where visibility and safety are a concern
• Waterproof design, no need to fear of heavy rain/water
• There are 2 installation styles for your selection 

Specification:

• Battery: 500mAh
• Charging port: USB interface (with data cable)
• Weight: about 24g (without bracket)
• Shell material: PC+ABS
• Features: 6 modes/7 colors/vibration sensor/highlight when braking