Entwodiksyon
The ISOtunes Sport DEFY Slim Basic provides superior electronic hearing protection in a compact design. This device is engineered to protect your hearing from harmful noises while allowing you to maintain situational awareness through its Tactical Sound Control technology. This manual provides essential information for the proper setup, operation, and maintenance of your DEFY Slim Basic earmuffs.

Image: ISOtunes Sport DEFY Slim Basic electronic earmuffs, matte black.
Pwodwi souview
The ISOtunes Sport DEFY Slim Basic is designed for various applications requiring hearing protection and situational awareness. Key features include:
- Tactical Sound Control: Amplifies ambient sounds up to 8 times their natural volume while instantly suppressing harmful gunshot noises within 2 milliseconds.
- 20 dB Noise Reduction Rating (NRR): Effectively reduces noise levels to protect against sounds typically ranging from 150-170 decibels, such as gunshots.
- Ultra-Mens konsepsyon: Weighing approximately 310 grams, these earmuffs offer comfort and a low-profile fit for extended wear and ease of use with other gear.
- Batri ki dire lontan: Provides up to 300 hours of operation using two AAA batteries.
- IPX4 Durability: Resistant to water splashes, sweat, and dust, suitable for various environmental conditions.
- Nòt: This product does not feature Bluetooth connectivity or an integrated microphone for phone calls.

Image: The DEFY Slim Basic earmuffs are suitable for range use, law enforcement, training, and hunting.
Kontni bwat
Lè w ap ouvri pake a, verifye si tout bagay sa yo ladan l:
- ISOtunes Sport DEFY Slim Earmuff
- 2 batri AAA
- Kab oksilyè (3.5mm)

Image: The package includes the DEFY Slim earmuffs, two AAA batteries, and an auxiliary cable.
Enstalasyon
1. Enstalasyon batri
- Locate the battery compartment on one of the earmuff cups.
- Louvri kouvèti lòj la.
- Mete de pil AAA yo nan plas yo, asire w polarite a kòrèk (+/-).
- Byen fèmen kouvèti lòj batri a.
2. Fitting the Earmuffs
- Gently pull the earcups apart and place the headband over your head.
- Adjust the position of each earcup by extending or retracting the headband arms until the earcups fully cover your ears and create a comfortable, secure seal.
- Ensure no hair or clothing interferes with the seal around your ears, as this can compromise noise reduction effectiveness.

Image: Proper fitting ensures optimal hearing protection and comfort.
Enstriksyon Operasyon
Pouvwa sou / Off ak kontwòl Volim
- Locate the power/volume knob on one of the earcups.
- Rotate the knob clockwise to power on the device and increase the volume of ambient sounds.
- Rotate the knob counter-clockwise to decrease the volume and power off the device.
Tactical Sound Control (TSC)
The DEFY Slim Basic features Tactical Sound Control technology, which automatically manages ambient sound levels:
- Son anbyen Amplifikasyon: When the environment is quiet or moderately noisy, the earmuffs will amplify sounds like speech and environmental cues, enhancing your situational awareness.
- Harmful Noise Suppression: Upon detecting sudden loud noises, such as gunshots, the TSC system will instantly suppress these sounds to a safe level, protecting your hearing. This reaction occurs within 2 milliseconds.

Image: Tactical Sound Control provides rapid noise suppression and sound amplifikasyon.
Sèvi ak Antre oksilyè a
The included 3.5mm auxiliary cable can be used to connect external audio devices (e.g., radios, MP3 players) to the earmuffs for listening purposes. Insert one end of the cable into the auxiliary port on the earmuff and the other end into your audio device.
Antretyen
Enstriksyon netwayaj
- The earmuffs are designed for Lave men sèlman. Do not machine wash or submerge in water.
- Sèvi ak anonsamp cloth with mild soap to gently wipe down the exterior surfaces of the earcups and headband.
- Avoid getting moisture into the electronic components or battery compartment.
- Kite kas ekoutè yo seche nèt nan lè a anvan ou sere yo oswa anvan ou itilize yo pwochen fwa a.
Depo
Store the earmuffs in a clean, dry place away from extreme temperatures and direct sunlight. Remove batteries if storing for extended periods to prevent leakage.
Depanaj
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Pa gen kouran/Pa gen son | Pil ki mouri oswa ki mal mete. | Ranplase pil yo ak pil AAA nèf, asire w ke polarite a kòrèk. |
| Son pòv amplification or noise reduction | Improper fit; earcups not sealing correctly. | Adjust earmuffs to ensure a tight seal around the ears. Remove any obstructions like hair or glasses arms. |
| Distorted or intermittent audio from auxiliary input | Loose auxiliary cable connection; faulty cable or audio source. | Ensure the auxiliary cable is fully inserted. Test with a different cable or audio source if possible. |
Espesifikasyon
- Nimewo Modèl: IT-40
- Evalyasyon Rediksyon Bri (NRR): 20 dB
- Tactical Sound Control: Amplifies up to 8x, 2ms reaction time
- Kalite batri: 2 x AAA pil
- Lavi batri: Jiska 300 èdtan
- Pwa: Apeprè 310 gram
- Durability Rating: IPX4 (rezistan a dlo, swè ak pousyè)
- Koneksyon: 3.5mm Auxiliary Input (no Bluetooth)
Garanti ak sipò
ISOtunes stands behind its products with the following:
- Yon ane garanti: Kouvri domaj fabrikasyon.
- Garanti 30 jou pou ranbousman: Pèmèt pou retounen nan 30 jou apre acha a.
For customer service inquiries, please contact the ISOtunes support team. Visit the official ISOtunes websit la pou jwenn enfòmasyon kontak ak resous sipò ki pi resan yo.