Generic Air Zound Rechargeable Horn, Multicolour

It's an air horn. It is VERY loud. Just like those old compressed air ones with the big red horns from the 70's and 80's but this just uses air from your standard Schrader valve bike pump, so when it runs out, just pump it up. A track pump is the easiest way as it can go up to 80 psi. Short, sharp toots work best but if you're out on the trail and it runs out, simply pump it up.The handle bar fixing is a bit fiddly, certainly on my bike, and I wanted the trigger as close as possible to my hand but because the horn hangs below the bars, it fouls on the brake reservoir. A bit of trial and error was needed but got there in the end.Overall, excellent and recommended.

This has been an excellent addition to my commuting armoury.First off, it's very very loud. If you're about to hit pedestrians who've walked into the road without looking, typically holding their phones, their ears plugged into their phones, their eyes glued to their phones, the sound of this horn is one of the few things that will penetrate from the real world into theirs (along with you colliding with them - but the first is better). A tinkle on a regular bell just can't be heard - or, if it is, is often ignored. You want something that will not only be heard, but make someone who's about to cause a crash to jump back with a little fear - and this makes it sound like a truck is coming! Obviously the point is not to scare people unnecessarily: I'd keep a regular bell on your handlebars too for polite rings to indicate your presence when there's no danger. But if a collision is imminent, if a taxi is swerving into your lane, if a lorry is overtaking at a pinch point, you need the AirZound's huge volume to signal your presence.You can velcro the bottle to various parts of your bike, or keep it in a bottle cage. However, I prefer to store it in one of the rear compartments of my Brompton bag. The bag clips onto the front of the Brompton above the front wheel, so when I set off I clip the bag on, unzip a rear pocket where all the AirZound gubbins is, take out the horn and clip it to my handlebars, then zip up the compartment again leaving a little gap for the tube to come out. I keep the bottle upside down in the bag to reduce the length of spare tubing dangling. After a ride, I unclip the horn and bung it back in the bag - all very quick. The plastic part which is permanently attached to my handlebars is very sturdy and hardwearing, and the clip mechanism is quick and reliable. I must have clipped and unclipped the horn more than a thousand times since I bought it, and there's no sign of wear on any part of the mechanism.You can select the volume by turning a dial, which changes the airflow, but I always keep mine at the max, and use another bell or my voice if it's not appropriate to give a blast. You fill up the bottle by pump, using the valve just underneath the horn button. I generally refill the bottle every two to three weeks, probably using the horn once every three days, but if you're lucky enough not to have to commute through London, it'll last longer. Just like bicycle tyres, if you pump the bottle up to the max (about 80psi, depending on the temperature - if you don't have a guage on your pump then just pump until you can barely pump any more - the bottle can take it!) and then leave it for weeks, it'll lose pressure, so bear that in mind if you've been away and are wondering why you're getting more of a whimper than a bang.Finally, I'd recommend this over similar, electronic devices like the Hornet, not just because they rely on batteries, and this you can recharge anywhere so long as you have a pump with you, but because this makes the sort of sound which leaves other road users in no doubt as to what's going on. It's like a car horn, or even a truck horn: the message is "I'm here" or "Get out of the way!" Though other products may compete in volume, they can't replicate this sort of sound: they emit beeps, bleeps, buzzes, wah-wahs - all sorts of things, but none of them instantly recognisable by a pedestrian or driver as a warning, and some perhaps confusable with a car alarm. The extra time needed to interpret electronic sounds is a drawback: it's no good explaining to someone that the high-pitched pulse they heard was coming from you, and as a warning, but only after they've knocked you off your bike.

I bought this because my bell is useless since I bike in the street, and pedestrians tend to obliviously walk in the middle of the street.First time with this horn, and two incidents: one person stepping into the street; another person standing talking to a friend in the middle of the cycle path.Both times, the horn quickly caught their attention and they stepped aside - I used it about 20-30m away.It sounds like a carb horn, which is one of the main reasons I got it.Install was fine. I wish there was a dedicated video and/or more detailed install instructions, but got it installed just fine.Definitely recommend this product! (Haven’t had to use it on a car yet, but I figure at low speeds and close proximity that the driver would hear it)

Love this horn.I’ve had an Air Zound style horn for several years now and wouldn’t ride without one now.I commute a few miles each way to work every day and have used this horn on numerous occasions. It is loud and always surprises drivers when you use it. It is easily as loud as any car horn and really gets you noticed.It is not something that I’d use to warn pedestrians of my approach as it is too loud but for cars it’s perfect.The bottle holds enough air for about 10 seconds of continuous use, which is a lot, and it’s easy to fill up with an old school type pump (not the high pressure valve pumps). There is a long tube from the bottle to the horn so you can place the bottle where you like on the bike (I have attached mine to the frame top tube with cable ties).The weakness with this horn is the attachment of the horn to the handle bars as they’re two separate pieces and the clip isn’t very strong which has meant that the horn has fallen off occasionally so I’ve had to glue the two bits together to make sure the horn stays on the handle bars.However this type of horn is awesome and I’d recommend any commuter cyclist get one.

This is exactly what I wanted. Loud that the cars can hear it. Easy to refillThe mount seems fiddly and the cable running to the bottle is not the most convenient, especially when mounted on a MTB. The horn is meant to pop out of the handlebar mount but mine doesn't. It's locked pretty hard and I think it will break if I try to remove it. This is an inconvenience as I have to remove my grip when I need to remove the horn for trail rides.The hose is long but flaps around and I had to strap it to the frame with velcro.A bit expensive for how simple it is and what materials it uses.

not much more to say. definitely got the attention of some audi drivers who seem to dehumanise people on bikes. making a loud noise seeems to wake them up breifly.