RiderR PRO-RIDER Bicycle Police Bike Sound Electronic Horn Siren Bell(Red, Blue, White)
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asy to install and remove without tool. Mount this bike rear light anywhere you want in seconds, such as the handlebar, the seat post or anywhere on the frame. This is a multi-functional product specially designed for bicycles and simple electric vehicles. There is a control key at the Bicycle Police Horn Bell, when it's "ON" position, light brights all the time. When "OFF" position, light only brights when pressing the one of 4 buttons.
