ANTUSI Smart Bicycle Light Q2S Carbon fiber pattern Shell IPX6 Waterproof Bicycle tail light with Brake sensor USB Rechargeable Night Riding Warning Light Bike Accessories

Features:

2 Brackets: Can be installed under your saddle or on the seatpost

Smart Brake Sensing: When the lights sense the brakes during riding, they will light up for 3 seconds to warn the vehicles behind

ABS+PC shell: light weight but stronger, able to resist impact, wear and corrosion resistance

IPX6 level waterproof and dustproof: not afraid of the impact of bad air off on the lights (do not soak in water for a long time)