Swimmers racing across lanes in an outdoor competition pool during a daytime swim meet

Air Horns for Swim Meets & Pool Competitions

A 150 dB, drill-battery air horn built for the pool deck — start heats, signal finishes, and rally the team between events.

49 products
150 dB output
2,000 ft remote
Pre-Built
Ships same day
90-day money-back
1-Year Warranty
How do I choose the right horn for me?

Pick the horn that runs on a battery you already own.

Runs on your existing tool batteries — the same packs as your drill or impact driver. No new batteries to buy or throw away: cheaper for you, easier on the planet.

The brand changes nothing about the horn. Every horn uses the exact same internal and external parts — so a Quad is a Quad and a Dual is a Dual. They sound and perform identically across every battery brand; you give up zero sound or power.

No cordless tools yet? Go with DeWalt®, Milwaukee® or Ryobi® — they give you the widest range of tools to buy later on the very same batteries.

Which horn is the loudest?

Our loudest sit at the top — here's how the lineup ranks:

1. Boss Series — our newest (2026) and most refined; it reworks the older Extreme design and fixes its weak spots. Its older sibling, the Extreme Series, sits right alongside it.

2. Quad — four trumpets, big full sound.

3. Dual — the 2026 Dual shares the Boss design, and it's the one to pick if your battery brand isn't covered by the Boss Series yet.

Skip the 5-trumpet. The on-board compressor can't push enough air for all five trumpets, so it ends up thinner and higher-pitched than it should.

Do I need a drill — or does it come with one?

No drill needed — and none included.

Ships fully built and ready to use — nothing to assemble, no tools required.

The only thing you add is a battery — the same cordless-tool pack your drill already uses.

Snap it in, pull the trigger — and it roars in seconds.

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Air Horns for Swim Meets & Pool Competitions
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Why these horns own race day

  • 150 dB that carries the length of the pool — a clean, unmistakable blast every swimmer, timer and parent hears over splashing and crowd noise.
  • Wireless remote up to 2,000 ft — fire it from the starter's stand, the timing table or the far end of the deck without a cord in sight.
  • Recharges off your drill battery — never dies between heats and there are no canisters to keep buying all season long.
  • Grab-and-go, zero install — pre-built and ready before warm-ups, so it's set the moment the first event is called.
  • Deep freight-train tone — a real metal-trumpet sound that cuts through a noisy natatorium far better than a thin canned horn.

Train Horns Built for Swim Meets

Battery compatibility:
DeWalt Train Horn - Boss Series (New 2026 Model) - BossHorn - dark-14%
Loudness150 dB
Horn4 XL Trumpets
Heard up to1.5 miles
ToneDeep Low Pitch

Boss Series Train Horn for DeWalt® 20v Battery

$450.00 $385.00
5.0 (5)
Boss Series Train Horn for Milwaukee® 18v Battery - BossHorn black-15%
Loudness150 dB
Horn4 XL Trumpets
Heard up to1.5 miles
ToneDeep Low Pitch

Boss Series Train Horn for Milwaukee® 18v Battery

$430.00 $365.00
4.7 (7)
Ryobi Train Horn - Boss Series (New 2026 Model) - BossHorn dark
Loudness150 dB
Horn4 XL Trumpets
Heard up to1.5 miles
ToneDeep Low Pitch

Boss Series Train Horn for Ryobi® 18v Battery

$385.00
5.0 (3)
Dual Train Horn for Milwaukee® 18v Battery (New 2026 Model) - BossHorn black-27%
Loudness130 dB
Horn2 trumpets
Heard up to< 1 mile
ToneHigh pitch

Dual Train Horn for Milwaukee® 18v Battery (New 2026 Model)

$255.00 $185.00
5.0 (8)
Dual Train Horn for DeWalt® 20v Battery (New 2026 Model) - BossHorn-25%
Loudness130 dB
Horn2 trumpets
Heard up to< 1 mile
ToneHigh pitch

Dual Train Horn for DeWalt® 20v Battery (New 2026 Model)

$280.00 $210.00
5.0 (6)
Dual Train Horn for Ryobi® 18v Battery (New 2026 Model) - BossHorn  dark-26%
Loudness130 dB
Horn2 trumpets
Heard up to< 1 mile
ToneHigh pitch

Dual Train Horn for Ryobi® 18v Battery (New 2026 Model)

$245.00 $180.00
4.8 (4)

See & Hear the Swim Meet Horns

Quick product demos of every horn — how it sounds, how it mounts on your drill battery, and how to use it on the pool deck and at the team tent.

// Real owners

Straight from our customers

Real photos from real Boss Horn owners — tap any shot to zoom in.

Start line to finish

The sound that runs the pool deck

A swim meet lives and dies by its signals. The starter's horn launches every heat, a sharp blast can recall a false start, and a victory blow tells the whole team a relay just touched first. A real train-horn-style air horn gives you one loud, clear voice for all of it — strong enough to reach the far lanes and the back of the bleachers.

Between events it's just as at home at the team tent: cue your swimmers to report to the blocks, fire it up when a club record falls, and keep your squad's energy high through a long summer-league morning.

Know the rules

Are air horns allowed at swim meets?

It depends who's holding it. Many summer-league and club meets use a handheld air horn (often paired with a whistle and a flashing strobe) as the official start signal when there's no electronic timing system — that's a legitimate, expected use run by the starter and officials. Always follow your league's rules and your meet referee's direction.

What you should not do is set one off on the deck during racing — a stray blast can trigger false starts and disrupt timers. As a spectator, keep the horn for the parking lot, team tent and post-meet celebrations, well away from the blocks while heats are underway. Sanctioned USA Swimming and high-school meets typically run on electronic starters, so check before bringing one to the deck.

Decibels that travel

How loud does a pool deck need?

Handheld air horns generally run between 110 and 150 decibels. The kits in this collection reach up to 150 dB — a deep, locomotive-grade blast that carries the full length of an Olympic pool and over the echo of an indoor natatorium.

Use it responsibly. 150 dB is seriously loud, so point the trumpets out toward open space and the water, never toward swimmers' ears, small kids or other officials, and keep to short bursts. On a crowded deck, a single clean blast does the job better than a long one.

No tank, no cans

How a drill-battery air horn works

There's no compressor, no air tank, no refill canisters and no wiring. Each horn uses an on-board electric air pump feeding real metal trumpets, so the whole unit is self-contained and grab-and-go.

Power comes from a cordless-drill battery you likely already have in the garage — slide it into the base (compatible with Milwaukee® M18™, DeWalt® 20V MAX, Makita® 18V LXT® and Ryobi® ONE+® packs and more), and you're ready. Select models add a wireless remote that works up to 2,000 ft, so a starter can trigger it from the stand without touching the unit. When the pack runs low, recharge it exactly like your drill — no trips to the store for a new can mid-season.

Match it to your meet

Choosing the right horn for your team

Every program runs its meets a little differently — here's how to match a horn to yours:

  • Trumpet count. Single, dual and quad-trumpet setups layer the tone — more trumpets give a fuller, richer blast that fills a big outdoor complex.
  • Tone style. Pick a LOUDEST trumpet style for a sharp, cutting start signal, or LOW TONE for that deep locomotive growl at the team tent.
  • Remote range. Long-range remote models fire from up to 2,000 ft — handy for a starter working away from the unit, or for big multi-pool venues.
  • Your battery brand. Choose the model that matches the drill batteries your team already carries, so you're never hunting for the right pack on meet morning.
  • Grab-and-go. It comes ready to run, so you can pull it from the gear bin and have it working before warm-ups end.

Before the first heat

Your swim meet horn checklist

  • Charged battery (plus a spare) so the horn never quits during a long meet.
  • Remote paired and tested from the starter's stand before warm-ups.
  • Pointed at open water or sky, away from swimmers, timers and young kids.
  • League rules confirmed — know whether the horn is the official start signal or strictly for the team tent.
  • Short, clean bursts agreed on with your officials so signals stay clear all morning.

Swim meet air horns — FAQ

Are air horns allowed at swim meets?
Often, yes — many summer-league and club meets use a handheld air horn as the official race start signal when there's no electronic timing, run by the starter. Sanctioned USA Swimming and high-school meets usually use electronic starters, so check your league's rules. As a spectator, keep it off the deck during racing and save it for the team tent or parking lot.
How loud is the horn?
These train-horn-style air horns reach up to 150 dB — a deep, carrying blast that travels the full length of a competition pool and cuts through the echo of an indoor natatorium. Aim it at open space, keep bursts short, and never point it toward swimmers' ears, kids or other officials.
Does it need a compressor or air tank?
No. There's no compressor, no air tank and no refill canisters. An on-board electric pump drives real metal trumpets, so the unit is fully self-contained — nothing to mount in a vehicle and nothing to plumb.
Which drill batteries does it work with?
It runs on common cordless-drill batteries, including Milwaukee® M18™, DeWalt® 20V MAX, Makita® 18V LXT® and Ryobi® ONE+® packs, and more. Pick the model that matches the batteries your team already carries so you're never short a pack on meet morning.
How far does the wireless remote reach?
Select models include a wireless remote that works from up to 2,000 ft. That lets a starter trigger the horn from the stand or timing table without touching the unit — useful at large outdoor complexes or multi-pool venues.
Can I use it to start races at our summer-league meet?
Many summer leagues do exactly that — pairing the air horn with a whistle and a flashing strobe so swimmers can both see and hear the start. Confirm it's permitted under your league's rules and coordinate with your meet referee on a consistent, short start blast.
Is 150 dB safe to use around the pool?
It's safe when used responsibly. 150 dB is very loud, so point the trumpets toward open water or the sky, away from swimmers, small children and officials, and use short single bursts. Don't fire it close to anyone's ears or right behind the blocks while swimmers are setting.
How do I recharge it?
Recharge it just like your drill — pop the cordless-drill battery onto your existing charger. There are no canisters to replace, so a charged pack (and a spare) keeps you running through a full meet and all season long.
How fast does it ship?
Orders placed before 2 PM PT ship the same business day, so you can have your horn in hand well before your next meet.

About Air Horns for Swim Meets & Pool Competitions

From the starter's signal that sends swimmers off the blocks to the cheers when your relay touches the wall, a portable air horn carries clean across the pool deck and out to the team tent. These rechargeable, train-horn-style air horns run on the cordless-drill battery you already own — no canisters to buy, nothing to refill, ready before the first heat.