Product Detail:
Brand: Rockbros
Mode: 5 modes Lumen: About 20 lumen Charge: USB Rechargeable Battery: Rechargeable lithium battery Waterproof: Daily waterproof, Can't be soaked Size: About 3.1*2*4cm Weight: About 22g Function: Bike bicycle rear light taillight, Helmet Taillight, Bag Warning Light Feature: Durable, Mini portable, USB Rechargeable 5 Modes, Waterproof, Multi-functional