Product: Compliant audible warning device (clear bell tones) for cars, motorcycles and e-bikes Key benefits — why you need it Meets public safety hearing-frequency and decibel requirements so warnings are audible where regulations apply — reduces risks from improper horn use and supports compliant operation in shared spaces. Plug-and-play installation via a dedicated connector for quick, tool-minimal mounting and straightforward integration with vehicle reversing-warning setups. Four adjustable tone settings, decoded by an HD decoder, let you match the warning level to ambient noise for reliably recognizable bell tones in varied environments. Robust electrical design with wide voltage compatibility and an anti-interference module prevents power-related sound faults and keeps tone output clear under typical vehicle electrical conditions. What it does (function and performance) Provides clear, regulation-aligned audible warnings for reversing and close-quarters traffic situations. HD decoder technology ensures consistent, distortion-free tone playback across selectable sound profiles. Anti-interference circuitry maintains stable performance in electrically noisy environments, minimizing false or muffled signals. Compatibility and handling Designed for direct connection to cars, motorcycles and e-bikes using the included plug connector; intended to meet individual reversing warning system requirements with flexible handling. Wide voltage compatibility accommodates common vehicle electrical systems without requiring additional converters or complex wiring. Four selectable sound standards let you adapt volume and tone pattern to urban, suburban, or low-noise rural environments. Practical applications Reversing safely in parking garages or delivery yards: provides a clear, regulation-compliant warning that pedestrians and workers can recognize. Urban e-bike and motorcycle use: selectable tones cut through ambient noise on crowded streets, improving awareness without resorting to improper horn use. Fleet or mixed-vehicle installations: plug-and-play connector and broad voltage tolerance make it suitable for retrofitting reversing-warning systems across vehicle types. What makes it stand out Compliance-focused design that aligns hearing-frequency and decibel requirements for public use. Simple plug-in installation coupled with flexible tone control and reliable electrical performance — a practical choice for professional and personal vehicle safety upgrades. Notes for installers and users Install using the provided plug connector and follow vehicle-specific wiring practices. Choose one of the four tone settings to balance audibility and regulatory requirements for your operating environment. The device’s anti-interference module helps ensure consistent operation near other vehicle electronics. Specifications (functions retained from original) Meets public-space hearing frequency and decibel requirements Plug-and-play connector for car, motorcycle and e-bike use Four adjustable tone standards with HD decoder technology Wide voltage compatibility and anti-interference module for stable sound reproduction