MTB Bike Horn Loud Rechargeable Warning Anti-theft 120 Decibels Bicycle Horn Waterproof Accessories

100% Brand New and High Quality ● Press and hold the button for 2.5 seconds to change the speaker mode. With 4 ringing modes, USB charging for 20 minutes, with alarm mode, which can remind you that your bicycle is moved or stolen.●The 120 decibel electric bicycle horn has a clear and loud sound effect, which is enough to warn motorists and pedestrians.●This bicycle horn is made of high-quality ABS plastic, strong and durable. Not easy to damage, reliable quality and long service life.●IPX-4 waterproofWhether it is drizzle, or storm, it can be used with confidence●Suitable for a variety of pipe diameter bicycles, more convenient and quick installation and disassembly