Bike Alarm Tail Light with Remote Control, Smart Brake Light & Auto On/Off Function
You should have this: The bicycle tail light alarm helps you ride with peace of mind and give you peace of mind when park outside. 110 dB bike alarm provides additional security and deters thieves effectively.
Smart auto on/off: In bright environments it automatically turns off to save power, if you need the tail light in day time, you can select Fast Blinking/Steady Light (these 2 modes have NOT smart on/off function).
Charging indicator: When the battery is fully charged, the red indicator goes out.
Low battery indicator: If the siren's battery is low, pressing the alarm button will display a low battery warning sound.