?powvine Electric Bike Horn 120dB Loud Bike Horn for 22.2-25.5mm Round Handlebars, USB Rechargeable Bicycle Horn, IP65 Waterproof, Easy Install for Mountain Bike/E-Bike/Scooter/Adults is up for auction in Sports & Outdoors. The current bid is $5.00, 69% below the $15.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.