The ISOtunes DEFY Slim Basic is the ultimate solution for hunters, shooters and professionals seeking reliable hearing protection without compromising situational awareness or comfort. This hearing protector is designed with Tactical Sound Control™ (TSC) technology, so you can continue to hear natural sound - but always at a safe volume. As soon as loud noises, such as gunfire, occur, the microphone immediately responds and mutes the sound to a safe level.
With an SNR of 27 dB and a slim over-ear design, this hearing protection offers maximum performance in a lightweight and ergonomic design. In addition, it is IPX4 water and dust resistant, and features SafeMax™ technology, which limits the volume to a safe 82 dB.
✅ Tactical Sound Control™ technology for real-time sound adjustment
✅ SafeMax™ noise limiting up to 82 dB for safe listening
✅ SNR 27 dB | NRR 21 dB – effective attenuation of harmful noise
✅ Lightweight design (only 289 g) with an ultra-thin fit
✅ Up to 300 hours of battery life with 2 AAA batteries
✅ IPX4 rating – resistant to sweat, rain, and dust
✅ Aux input for listening to music via a 3.5 mm cable
✅ Complies with ANSI S3.19-1974 and EN 352 standards
The ISOtunes DEFY Slim Basic is specifically designed for:
Hunters and sports shooters
Practitioners of shooting sports
Professional users in noisy environments
Users who need hearing protection with environmental awareness
| Feature | Specification |
|---|---|
| Model | IT-41 |
| EAN | 850045924416 |
| Color | OD Green (army green) |
| Bluetooth | No |
| Type | Electronic over-the-ear hearing protector |
| SNR (EN 352) | 27 dB |
| NRR (ANSI) | 21 dB |
| H/M/L value (EN 352) | H: 29 dB |
| TSC Technology | Yes, real-time microphone control |
| SafeMax™ Technology. | Yes, max output: 82 dB |
| Battery | 2 × AAA (included) |
| Battery Life | Up to 300 hours of use / standby |
| Weight (product) | 289 g (including batteries) |
| Packaging Dimensions. | 21.6 × 19.1 × 8.9 cm |
| Package Weight | 411 g |
| Water & dust resistance | IPX4 |
| Line-In capability | Yes, 3.5mm AUX cable included |
| Audio function telephone | Listen only, don't call |
| Certifications | ANSI S3.19-1974, EN 352, FCC, CE RED, RoHS, WEEE |
| Accessories | 2 × AAA batteries, 1 × aux cable, replacement parts available |
| Packaging unit (box) | 20 pieces |
| Box dimensions (outer) | 56.5 × 39.5 × 33 cm |
| Box weight | 8.7 kg |
Fitting: Pull the ear cups apart, place them on the head and adjust the headband for a snug fit.
Turn on: Turn the TSC/Power knob until you feel a click.
Cleaning: Use a soft cloth with mild soapy water. Do not soak or use harsh agents. Allow to dry after contact with moisture.
Note: Do not use in situations where full environmental awareness is required (such as while driving or cycling).
The ISOtunes DEFY Slim Basic is the hearing protector for those who combine safety, comfort and advanced technology. Whether you are on the hunting field, on the shooting range or working in a noisy environment, this hearing protector protects your hearing without losing contact with your surroundings.
🎯 Order today and experience the difference!
🔇 Protect your hearing. Stay sharp.
See all our customer reviews below
I received my IsoTunes Sport Defy Slim Basic electronic hearing protection for the shooting range today...
The model is super slim and fits perfectly..
The sound through the speakers is really clear; now I just need to test them out at the shooting range soon..👍
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