With 3 alarm tones at 3 different adjustable volume levels up to 110dB, it can effectively scare off potential thieves within seconds. [IP55 WATERPROOF MULTIFUNCTION ALARM] - This vibration triggered alarm is made with a UV resistant and strong PC construction. WSDCAM Wireless Bike Alarm with Remote, Rechargeable Bicycle... If not or light weak, please replace the remote control battery., 2., The alarm is in low power consumption mode when you receive. 110 DB Bike Alarm With Smart Tail Light, Anti Theft Bicycle Please charge the alarm at least 1 minute to activate before use, otherwise remote can't control the alarm., 3., If alarm have been charged and activated, remote still doesn' t work, please pair the remote and alarm again. 🔥【4-in-1 function】Taillight/Brake light/Anti-theft alarm/Bike bell. 🔥【Brake light 】Brake light will be highlighted immediately when you brake or slow down! The pairing method please see. In this mode, remote can not control the alarm. 4-in-1 Bike Tail Light: Features a taillight, brake light, anti-theft alarm and bike bell. · Power-Saving Smart Auto On/Off: Automatically turns on or off based... NineLeaf Anti-Theft Bike Alarm With Mount, USB C Rechargeable 110db Burglar Vibration Motorcycle Bicycle Alarm