Features1Adopt high grade PVC material, eco-friendly, energy saving and durable for long term use. 2Using high quality electronic components and integrated protection circuit, let it has long-lasting sound quality. 3Has humanized protection function, automatically lock and stop after 10 seconds power supply, can be used as usual after re-energizing. 4Fully sealed as this product is, support it have super waterproof function. 5105Bb sound is gentle and comfortable, especially suitable for small bikes and electric bikes, it does not affect the use of other electrical appliances.SpecificationFeatures:Adopt high grade PVC material, eco-friendly, energy saving and durable for long term use.Using high quality electronic components and integrated protection circuit, let it has long-lasting sound quality.Has humanized protection function, automatically lock and stop after 10 seconds power supply, can be used as usual after re-energizing.Fully sealed as this product is, support it have super waterproof function.105Bb sound is gentle and comfortable, especially suitable for small bikes and electric bikes, it does not affect the use of other electrical appliances.Specification:Material: PVCColor: as the picture showsBattery: 200mAhSize: 10.5*7*4.5cm/4.1*2.8*1.8inPackage List:1 x Bike HornNote: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.Package List