• It is made of high-quality PC+rubber material, which is durable to use
• Built-in 500mAh battery, providing a long working time
• High brightness, bright enough for cycling, hiking, camping, or any outdoor activity in 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 3 lighting styles for your selection 

Specification:

• Material: PC+rubber base
• Style: T1-red light; T2-red/green/blue light; T3-red/blue/white light
• Weight: about 41g
• Battery capacity: 500mAh