1. Ifihan
The ISOtunes PRO 3.0 Bluetooth Hearing Protection Earbuds are designed to provide certified hearing protection while allowing for audio streaming and communication in noisy environments. This manual provides essential information for the proper setup, operation, and maintenance of your device.

Image 1.1: ISOtunes PRO 3.0 Bluetooth Hearing Protection Earbuds, Safety Orange variant, showcasing the earbuds, inline control panel, and connecting cable.
2. Package Awọn akoonu
Daju pe gbogbo awọn nkan ti a ṣe akojọ rẹ si isalẹ wa ninu package rẹ:

Image 2.1: Visual representation of the ISOtunes PRO 3.0 package contents, including the earbuds, carrying case, USB-C charging cable, various eartips, and cable management clips.
- ISOtunes PRO 3.0 Earbuds
- USB-C Ngba agbara Cable
- Ọran gbigbe
- 4 Pairs of Trilogy™ Foam Eartips (XS, S, M, L)
- 1 Pair of Silicone Triple Flange Eartips
- 2 Cable Management Clips
- 1 Agekuru Alligator
3. Alaye Aabo pataki
The ISOtunes PRO 3.0 earbuds are designed for hearing protection. Adhere to all safety guidelines to ensure proper function and personal safety.
- Ibamu OSHA: These earbuds are OSHA approved and feature an ANSI-certified Noise Reduction Rating (NRR) of 27 dB. The SafeMax volume limit is set to 85dB to protect against hearing damage.
- Imudara to dara: Achieving the stated NRR requires a proper seal. Refer to the eartip selection and insertion guide for optimal fit.
- Imọye Ayika: While providing hearing protection, always remain aware of your surroundings, especially in hazardous environments.

Image 3.1: A diagram illustrating the correct method for rolling and inserting foam eartips into the ear canal, alongside a chart detailing various noise levels and their potential for hearing damage.
4. Awọn ẹya Ọja
The ISOtunes PRO 3.0 offers a range of features designed for demanding work environments:

Image 4.1: A graphic summarizing the key features: OSHA compliance, Bluetooth 5.4 with LE Audio and Auracast, 27 dB NRR, IP67 dust/sweat/waterproof rating, up to 20-hour battery life, and military-spec drop test durability.
- Certified Hearing Protection: ANSI-certified 27 dB NRR and SafeMax 85dB volume limit.
- Ikole ti o tọ: IP67 dust and waterproof rating, tested to military drop & shock standards (MIL-STD 810H), aramid-reinforced cables.
- Igbesi aye batiri ti o gbooro sii: Up to 20 hours of use on a single charge, with USB-C fast charging.
- Ohun Didara to gaju: Custom-tuned full-range dynamic drivers for clear sound.
- Ilọsiwaju Asopọmọra: Bluetooth 5.4 with Low Energy (LE) Audio and Auracast support, dual pairing, and 2-way radio compatibility.

Image 4.2: Demonstrates the versatility of the ISOtunes PRO 3.0 earbuds in different work environments such as outdoor power equipment operation, manufacturing, woodworking, and construction.
5. Eto Itọsọna
5.1 Gbigba agbara si awọn agbekọri rẹ
Before first use, fully charge your ISOtunes PRO 3.0 earbuds.
- Wa ibudo gbigba agbara USB-C lori nronu iṣakoso opopo.
- Connect the provided USB-C cable to the port and the other end to a compatible USB power source.
- The LED indicator on the control panel will show charging status. A full charge takes approximately 1.5-2 hours. A 10-minute quick charge provides approximately 2 hours of listening time.
5.2 Eartip Selection and Insertion
Proper eartip selection and insertion are crucial for optimal hearing protection and sound quality.
- Yan Iwọn Ti o tọ: Experiment with the included Trilogy™ foam eartips (XS, S, M, L) and silicone triple flange eartips to find the size that provides a snug, comfortable fit and a good seal in your ear canal.
- Foam Eartip Insertion: Roll the foam eartip into a tight, creaseless cylinder. Insert the compressed eartip into your ear canal and hold it in place for 5-10 seconds while it expands to create a seal.
- Silicone Eartip Insertion: Gently push the silicone eartip into your ear canal until it forms a comfortable seal.
5.3 Sisopọ Bluetooth
To connect your ISOtunes PRO 3.0 to a Bluetooth-enabled device:
- Rii daju pe awọn agbekọri ti wa ni pipa.
- Press and hold the multi-function button on the control panel until the LED indicator flashes blue and red, indicating pairing mode.
- Lori ẹrọ rẹ, mu Bluetooth ṣiṣẹ ki o wa awọn ẹrọ to wa.
- Select "ISOtunes PRO 3.0" from the list.
- Ni kete ti a ti sopọ, Atọka LED yoo tan bulu lorekore.
6. Operating Your ISOtunes PRO 3.0

Aworan 6.1: alaye view of the ISOtunes PRO 3.0 earbuds and the inline control panel, showing the buttons for power, volume, and multi-function.
6.1 Agbara Tan / Pa
- Agbara Tan: Tẹ bọtini iṣẹ-pupọ naa ki o si di mu fun iṣẹju-aaya mẹta. LED naa yoo tan imọlẹ buluu.
- Agbara Pa: Tẹ bọtini iṣẹ-pupọ naa ki o si di mu fun awọn aaya mẹta. LED naa yoo tan imọlẹ pupa lẹhinna yoo pa.
6.2 ipe Management
- Idahun/Ipe Ipari: Tẹ bọtini iṣẹ-ọpọlọpọ lẹẹkan.
- Kọ Ipe: Tẹ mọlẹ bọtini iṣẹ-ọpọlọpọ fun iṣẹju-aaya 2.
- Oluranlọwọ ohun: Tẹ bọtini iṣẹ-ọpọlọpọ lẹẹmeji lati mu oluranlọwọ ohun ẹrọ rẹ ṣiṣẹ.
6.3 Sisisẹsẹhin Orin
- Ṣiṣẹ/Daduro: Tẹ bọtini iṣẹ-ọpọlọpọ lẹẹkan.
- Orin t’okan: Press the volume up (+) button for 2 seconds.
- Tẹlẹ Orin: Press the volume down (-) button for 2 seconds.
6.4 Iṣakoso iwọn didun
- Mu iwọn didun pọ si: Tẹ bọtini iwọn didun soke (+).
- Din iwọn didun silẹ: Tẹ bọtini iwọn didun isalẹ (-).
6.5 Dual Pairing and 2-Way Radio Compatibility
The PRO 3.0 supports dual pairing, allowing connection to two Bluetooth devices simultaneously. It also offers compatibility with 2-way radios for enhanced communication in professional settings. Refer to your 2-way radio's manual for specific pairing instructions.
7. Itọju ati Itọju
- Ninu: Regularly clean eartips with a damp cloth. For foam eartips, replace them when they become dirty or lose their elasticity. The earbuds themselves can be wiped with a soft, dry cloth. Do not use harsh chemicals.
- Ibi ipamọ: Store the earbuds in the provided carrying case when not in use to protect them from dust, moisture, and physical damage.
- Ifihan omi: While IP67 rated, avoid prolonged submersion. Ensure the USB-C port cover is securely closed before exposure to water or dust.
8. Laasigbotitusita
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Earbuds ko ni agbara lori | Batiri kekere | Charge the earbuds using the USB-C cable. |
| Ko le so pọ pẹlu ẹrọ | Earbuds not in pairing mode; Device Bluetooth off; Out of range | Ensure earbuds are in pairing mode (flashing blue/red). Turn on device Bluetooth. Move device closer to earbuds. |
| Dídára ohùn tí kò dára tàbí ohùn tí kò pọ̀ tó | Improper eartip fit; Low battery; Source audio quality | Adjust eartips for a secure seal. Charge earbuds. Check audio source quality. |
| Asopọmọra igba diẹ | Interference; Out of range; Low battery | Move away from other wireless devices. Reduce distance to paired device. Charge earbuds. |
9. Imọ ni pato
| Ẹya ara ẹrọ | Sipesifikesonu |
|---|---|
| Orukọ awoṣe | PRO 3.0 |
| Nọmba Awoṣe Nkan | IT-21B |
| Iwọn Idinku Ariwo (NRR) | 27 dB |
| SafeMax Volume Limit | 85 dB |
| Ẹya Bluetooth | 5.4 (with LE Audio & Auracast support) |
| Igbesi aye batiri | Titi di awọn wakati 20 |
| Akoko gbigba agbara | Approx. 1.5-2 hours (10 min quick charge for 2 hours use) |
| Gbigba agbara Port | USB-C |
| Omi Resistance Ipele | IP67 (Dust, Sweat, and Waterproof) |
| Standard agbara | MIL-STD 810H (Military Drop & Shock) |
| Iwọn Igbohunsafẹfẹ | 20 Hz - 20,000 Hz |
| Ipalara | 32 ohm |
| Iwọn Nkan | 8.1 iwon |
| Ọja Mefa | 4.75 x 4.5 x 2.25 inches |
| UPC | 850045924232 |
10. Atilẹyin ọja ati Onibara Support
ISOtunes products are backed by a manufacturer's warranty. For specific warranty details, registration, or to contact customer support, please visit the official ISOtunes website or refer to the warranty card included in your product packaging. You may also reach out to the seller directly for assistance.





