Key benefits Durable metal construction that is built to last and can withstand the elements, providing reliable performance in any weather conditions. Advanced anti theft technology with a sensitivity anti theft probe and microcomputer control that activates the alarm accurately when unauthorized movement is detected. Loud alarm system capable of up to 110 decibels, effectively deterring thieves and alerting you to any tampering. Easy operation with a simple locking and unlocking mechanism for effortless activation or deactivation during rides. What makes it stand out Precision movement detection through a sensitivity anti theft probe and microcomputer control for reliable security. decibel audible alert that clearly signals tampering or intrusion. Weather resistant metal construction designed for durability in daily use and in adverse conditions. User friendly design that supports quick setup and minimal effort to secure your bicycle. Specifications and performance Material is metal for robust durability. Alarm output reaches up to 110 decibels. Detection uses a sensitivity anti theft probe with microcomputer control. Locking and unlocking mechanism provides straightforward operation. Practical use scenarios Urban street or shopping area parking: when you leave your bike unattended for short periods, the loud alarm serves as a strong theft deterrent and alerts you immediately if there is tampering. Campus or transit hub environments: securing your bicycle while attending classes or waiting between connections, with reliable detection and a clear audible alert. Outdoor trips or variable weather conditions: the metal construction and weather resistant design provide durable security for rides and stops in diverse environments.