From Bike Parts:Delta AirZound 115 db rechargable air powered horn
Was this useful? Yes | No From Price Point:Delta Airzound Air Horn is the "world's loudest bike horn" featuring Super Loud 115 db. No batteries or cartridges are required and loudness can be modified through a handy volume control switch. Clamp for mounting on any handlebar makes installation a snap. Airzound refills with any bike pump.
Was this useful? Yes | No From Jenson USA:Harness the power of compressed air! Far louder than any bell or whistle, the AirZound emits 115 ear-splitting decibels to attract the attention of drivers and/or pedestrians. When it's empty, simply charge it back up... requires no batteries or power source.
Was this useful? Yes | No From Outdoor Basics:AIRZOUND HORN: Super loud 115 db. No batteries or cartridges required. Volume control switch. Mounts on any handlebar. Includes untralight air resevoir that refills with any bike pump.
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