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ISOtunes Sport DEFY Slim Bluetooth Ear Defenders
£118.74 Inc VAT
ISOtunes Sport DEFY Slim Bluetooth Ear Defenders combine a certified 27dB SNR hearing protection rating with Tactical Sound Control for environmental awareness. Bluetooth 5.0 supports calls and audio, while separate controls adjust listening volume and ambient sound levels. Powered by two AAA batteries, they offer up to 25 hours of battery life and IPX4 water resistance.
1 in stock
SKU:
ISOTUNESEARBUDS
Categories: Sporting Equipment, Protection, Ear Protection
Tags: 27dB SNR, Bluetooth ear defenders, Bluetooth earmuffs, DEFY Slim, electronic hearing protection, ISOTUNES, ISOtunes Sport, shooting ear defenders, Tactical Sound Control
Description
ISOtunes Sport DEFY Slim Bluetooth Ear Defenders
ISOtunes Sport DEFY Slim ear defenders combine electronic hearing protection, environmental sound monitoring and Bluetooth connectivity in a slim over-ear design. They are intended for shooting and field sports where hearing protection and awareness of surrounding sounds both matter.
This is the Bluetooth-enabled DEFY Slim model, with wireless audio and a microphone for phone calls.
Tactical Sound Control
Tactical Sound Control uses external microphones to relay surrounding sounds through the ear defenders. Quiet sounds can be amplified, helping you hear conversation and activity nearby while wearing the protection.
The level-dependent circuitry suppresses loud impulse sounds in under two milliseconds, according to ISOtunes. Separate adjustment lets you choose the ambient listening level.
Certified hearing protection
The DEFY Slim has a certified Single Number Rating of 27dB SNR. SafeMax technology limits the audio output to 82dB.
Correct fitting is essential. Follow the supplied instructions and ensure the cushions maintain a proper seal around both ears. Choose hearing protection appropriate to the noise exposure and any requirements at your shooting venue.
Bluetooth calls and audio
Bluetooth 5.0 connects the ear defenders to a compatible device for audio playback and calls. A background noise-reducing microphone helps with voice communication.
The multifunction button provides access to playback, track selection and call handling. Two control wheels allow adjustment of audio volume and Tactical Sound Control without relying solely on your phone.
Slim design and replaceable batteries
The slim ear cups offer a compact profile, with memory foam cushions supplied as standard. Two AAA batteries power the electronics, with manufacturer-stated battery life of up to 25 hours.
IPX4 water resistance provides protection against splashes. The ear defenders should not be submerged.
Key specifications
- Brand: ISOtunes Sport
- Model: DEFY Slim Bluetooth
- Hearing protection rating: 27dB SNR
- Ambient listening: Tactical Sound Control
- Connectivity: Bluetooth 5.0 and AUX input
- Maximum audio output: 82dB
- Power: Two AAA batteries
- Battery life: Up to 25 hours
- Water resistance: IPX4
- Microphone: Background noise-reducing microphone
Supplied with
- DEFY Slim ear defenders.
- Two AAA batteries.
- Fitted memory foam ear cushions.
- Auxiliary cable.
- Product documentation.
Explore hearing protection
Browse our hearing protection and protective equipment to compare options.
For manufacturer specifications and product documentation, visit the official ISOtunes DEFY Slim page.
Additional information
| Weight | 1 kg |
|---|
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About brand
ISOtunes produces hearing protection in both in-ear and over-ear designs. Its ISOtunes Sport range includes electronic ear defenders and protective earbuds, with selected models offering Bluetooth connectivity and Tactical Sound Control technology to help users hear surrounding sounds while wearing hearing protection. Features vary by model.
Browse ISOtunes hearing protection at Ellmor, including CALIBER earbuds and DEFY ear defenders. Compare individual models for fit, noise-reduction rating, battery life and connectivity. Correct fitting and use are essential, so follow the supplied instructions and choose protection appropriate to your noise exposure.
Shipping and Delivery
Shipping & Delivery
DPD next-working-day delivery
Order in-stock items before 2pm on a working day for DPD next-working-day delivery to UK mainland addresses. Orders placed after 2pm, at weekends or on bank holidays are processed on the next working day. Delivery remains subject to courier availability and delays.
Free delivery over £100
Free delivery is available on qualifying UK mainland orders over £100, excluding palletised items. Available delivery options and charges are shown at checkout.
Palletised items
Palletised items require separate delivery arrangements and are excluded from our free-delivery offer. Contact us for delivery costs and arrangements.
Need help?
For delivery queries, call 01630 685 257 or email info@ellmorltd.com.
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Select options
This product has multiple variants. The options may be chosen on the product page
3M Peltor Bulls Eye III H540A Hearing Protectors
£36.59 Inc VAT
3M Peltor Bulls Eye III H540A Hearing Protectors provide passive hearing protection for shooting and field sports. The double-cup design, stainless steel headband and soft, wide cushions combine noise attenuation with comfort. Current 3M documentation specifies a 34dB SNR rating. Supplied in green, with replacement cushions and inserts available separately.

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