WSDCAM 113dB Bike Alarm Horn with Remote Bicycle horn alarm with remote. Not only a bike alarm but also a bicycle horn. Wireless horn switch clamps on handlebar. 113 dB is loud enough to alert pedestrians and drivers. Anti-theft alarm triggered by vibration, with 113 dB loud alarm sound can help to deter thieves effectively, provide additional security and give you peace of mind when your vehicles park at home or outdoors. There are 7 levels adjustable sensitivity from gently touch to push or beat.