This is a snail horn, which has beautiful appearance with special waterproof and dust-proof. So that you can use it even in the extreme day. With 139DB loudness, it can give out loud and clear sound. Such a beautiful looking and practical product, you will like it. _x000D_ _x000D_ _x000D_ Features: _x000D_ 139DB loudness, loud and clear sound. _x000D_ No air tubes needed, no external air supply needed. _x000D_ Comes with fixing bracket waterproof cover, made of pig iron and plastic, durable in using. _x000D_ Powered by 12V DC, low power consumption and high performance. _x000D_ Snail horn, beautiful appearance with special waterproof and dust-proof design. _x000D_ Easy to install, no installation instructions required. _x000D_ It requires only one fixing point. _x000D_ Fit for car, vehicle, motorcycle, yacht, boat, SUV, bike, buses, pick-up sea vessels ect. _x000D_ _x000D_ _x000D_ Specification: _x000D_ Condition: 100% brand new _x000D_ Material: Pig iron + plastic _x000D_ Color: Black _x000D_ Size: Shown as picture _x000D_ Voltage: 12V _x000D_ Main Color: Black and Red _x000D_ Absorption (at 24V): = 115 dB(A) _x000D_ Sound Pressure Level at 4in: >=139 dB(A) _x000D_ Reliability: 100.000 on / off cycle _x000D_ Type of Sound: Harmonized twin tone _x000D_ Package Weight: Approx. 722g / 25.5oz_x000D_ _x000D_ Fitment: Universal fit for most Scooters/Mopeds, ATVs, Go-Karts, Dirt Bikes, Pocket Bikes and Motorcycles on the market. _x000D_ _x000D_ _x000D_ Package Included: _x000D_ 1 x Snail Horn_x000D_ 1 x Switch_x000D_ 1 x Set of Bolt and Nut_x000D_ _x000D_ _x000D_ Installation Note: _x000D_ Connected directly to the battery relay. _x000D_ If you have not connected the horn relay, may cause electrical problem. _x000D_ It is recommended to use 20A-30A fuse. _x000D_ Mounting angle downward,so that moisture can not collect in the horn. _x000D_ If no sound or strange sound,check the horn -wire (+/-). _x000D_ Connect the grounding cable to avoid spark. _x000D_ Disconnect the ground cable first remove. _x000D_ Be careful not to put too close to the chassis of the horn-trumpe trattling noise reduction. _x000D_ _x000D_ _x000D_ Note: _x000D_ 1. Minor modification may be required for mounting. _x000D_ 2. The power of sound needs more than 80W. _x000D_ 2. Please check the size carefully before you purchase. _x000D_ 3. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. _x000D_ 4. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1139DB loudness, loud and clear sound.? 2Powered by 12V DC, low power consumption and high performance. 3Snail horn, beautiful appearance with special waterproof and dust-proof design. 4Comes with fixing bracket waterproof cover, made of pig iron and plastic, durable in using. 5Fit for car, vehicle, motorcycle, yacht, boat, SUV, bike, buses, pick-up sea vessels ect. ?