6-sound bike bicycle super-loud electronic siren horn bell ring alarm speaker r.b.k </p><p><strong>product description:</strong></p><p>features:</p><p>-100% brand new electric bicycle horn</p><p>-loud and effective electronic horn</p><p>-great for town and city riding where audible presence is required</p><p>-fits all handlebar types and sizes and is easy to fit</p><p>-water resistant construction for year round use</p><p>-with 6 different and loud sounds, increase the safety</p><p>-sound button is very comfortable and sensitive</p><p>-waterproof design, so also can be used on rainy day</p><p>-fine workmanship and waterproof</p><p>-easily install and fits all kinds of bicycle whose hand-bar diameter is 20~25mm</p><p>-power is 9v battery included for long time use</p><p><strong>specifications:</strong></p><p>-material: plastic</p><p>-color: black</p><p>-fits tube diameter: 20-25mm</p><p>-wire length: 220mm</p><p>-size: 90 x 55 x 55mm</p><p>-weight: 128g</p><p>package contents:</p><p>1 x electronic 6 sounds cycling alarm</p><p>