AUTOINNOVATION Brings To You PLEASANT SOUND HORN FOR CARS, BIKES, SCOOTIES, TRACTORs, CRANES, BUSES, Automotive electronics is based on multi-speaker sound at the core of the high-tech micro-electronic products, with non-contact, good sound quality, frequency stability, long life, wide range of voice, a permanent memory settings. Full Harmonious Tone.Loudest Trumpet Horn in The Style Range. It's easy to install and use, stable and reliable work Motorists can set preferences in accordance with the needs of their own voice, at the same time you could enjoy the speakers to bring you extraordinary surprise. Note: - Connection must be carried out correctly and professionally! When attaching the horn, please ensure you use a stable location on the bumper or vehicle body. To avoid voltage drop, a relay must be used in a splash-proof position, with the terminals pointing downwards.