Product Details:

Brand: Rockbros

Mode: 5 modes

Lumen: about 20 lumen

Charge: USB Rechargeable

Battery: rechargeable lithium battery

Waterproof: daily waterproof, cannot be soaked

Size: about 3.1 * 2 * 4cm

Weight: about 22g

Function: bicycle taillight taillight, helmet taillight, bag warning light

ROCKBROS Bicycle Light Waterproof Dwaterproof Cycling Helmet Taillight For Bicycle LED USB Rechargable Safety Night Riding Rear Light

Features:

Durable, mini portable, usb rechargeable

5 modes, water-proof, multifunction