Air Zound HO971 Rechargeable Bike Horn – 120dB Bicycle Air Horn

Make yourself heard on the road with the Air Zound HO971 Rechargeable Bike Horn, a powerful compressed-air bicycle horn designed to provide a loud, adjustable warning signal for cyclists.

Also known as the EcoBlast AZ Bike Horn, the HO971 produces a powerful sound of up to 120 decibels, making it a practical alternative to a conventional bicycle bell when a stronger audible warning is needed.

Unlike battery-powered electronic horns or disposable gas canisters, the Air Zound uses refillable compressed air. Simply recharge the air bottle using a compatible bicycle pump or other suitable compressed-air source.

With approximately 30–40 blasts per charge, adjustable volume and a lightweight handlebar-mounted horn, the HO971 is suitable for recreational cyclists, commuters and riders wanting an effective bicycle warning device.

Available online from Barton Marine NZ, supplying practical outdoor accessories and safety equipment throughout New Zealand.

Key Features

• Genuine Air Zound / EcoBlast AZ HO971 Bike Horn

• Powerful sound output of up to 120dB

• Refillable compressed-air operation

• Approximately 30–40 blasts per charge

• Adjustable horn volume

• No batteries required

• No disposable aerosol propellant required

• Recharges using a compatible bicycle pump or compressed-air source

• Horn clamps to bicycle handlebars

• Air bottle can be mounted in a bottle cage or suitable frame location

• Lightweight horn unit weighing less than 100g

• Designed specifically for bicycle use

• Practical for commuting, recreational cycling and everyday riding

• Reusable alternative to disposable compressed-gas warning horns

Technical Specifications

Note: The quoted weight applies to the horn unit; it should not be interpreted as the total installed weight of the complete horn and air bottle system. The exact operating pressure and mounting dimensions should be checked against the instructions supplied with the product.

Powerful 120dB Bicycle Warning Horn

The Air Zound HO971 is designed to produce a loud audible warning when needed.

With a stated output of up to 120dB, it offers a stronger warning sound than many conventional bicycle bells.

This can be useful when cycling in environments where background noise may make quieter warning devices difficult to hear.

Typical applications include:

• Urban cycling

• Bicycle commuting

• Recreational road riding

• Shared cycling routes

• Touring

• General bicycle safety awareness

Use the horn responsibly and only when appropriate. A loud horn can startle pedestrians, other cyclists and nearby road users.

Refillable Compressed-Air System

One of the main advantages of the HO971 is its reusable compressed-air operation.

Instead of relying on batteries or disposable aerosol canisters, the horn uses an air bottle that can be refilled.

When the air supply runs low, recharge it using a compatible bicycle pump or another suitable compressed-air source.

This makes the Air Zound a practical option for cyclists who want a reusable warning horn without regularly purchasing replacement batteries or gas cartridges.

Always follow the manufacturer's filling instructions and pressure limits.

Approximately 30–40 Blasts Per Charge

The HO971 provides approximately 30–40 horn blasts per charge, according to the NZ distributor.

The actual number of blasts depends on how long the horn is operated, the volume setting and the amount of compressed air available.

Short, controlled bursts help conserve the air supply.

For regular cycling, check the bottle pressure periodically and refill it when required.

Adjustable Volume Control

The Air Zound HO971 includes an adjustable volume control.

This allows riders to vary the horn's output to suit different situations.

A lower setting may be more appropriate in quieter surroundings, while a louder setting can provide a more noticeable warning in noisy environments.

Always choose the lowest effective volume for the situation and avoid unnecessary use near other people's ears.

Handlebar-Mounted Horn

The HO971 horn is designed to clamp onto compatible bicycle handlebars.

This places the warning device within reach of the rider, allowing it to be operated when needed.

The air bottle can be positioned in a suitable bicycle bottle cage or another secure location on the frame.

Before riding, check that:

• The horn is securely attached.

• The air bottle cannot move or fall out.

• The connecting hose is correctly routed.

• The horn can be operated without losing control of the bicycle.

• The installation does not interfere with steering, brakes or cables.

Confirm compatibility with your bicycle's handlebar and frame arrangement before installation.