1. Introduction
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 Contents
Verify that all items listed below are included in your package:
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 Charging Cable
- Carrying Case
- 4 Pairs of Trilogy™ Foam Eartips (XS, S, M, L)
- 1 Pair of Silicone Triple Flange Eartips
- 2 Cable Management Clips
- 1 Alligator Clip
3. Important Safety Information
The ISOtunes PRO 3.0 earbuds are designed for hearing protection. Adhere to all safety guidelines to ensure proper function and personal safety.
- OSHA Compliance: 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.
- Proper Fit: Achieving the stated NRR requires a proper seal. Refer to the eartip selection and insertion guide for optimal fit.
- Environmental Awareness: 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. Product Features
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.
- Durable Construction: IP67 dust and waterproof rating, tested to military drop & shock standards (MIL-STD 810H), aramid-reinforced cables.
- Extended Battery Life: Up to 20 hours of use on a single charge, with USB-C fast charging.
- High-Quality Audio: Custom-tuned full-range dynamic drivers for clear sound.
- Advanced Connectivity: 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. Setup Guide
5.1 Charging Your Earbuds
Before first use, fully charge your ISOtunes PRO 3.0 earbuds.
- Locate the USB-C charging port on the inline control panel.
- 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.
- Choose the Right Size: 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 Bluetooth Pairing
To connect your ISOtunes PRO 3.0 to a Bluetooth-enabled device:
- Ensure the earbuds are powered off.
- Press and hold the multi-function button on the control panel until the LED indicator flashes blue and red, indicating pairing mode.
- On your device, enable Bluetooth and search for available devices.
- Select "ISOtunes PRO 3.0" from the list.
- Once connected, the LED indicator will flash blue periodically.
6. Operating Your ISOtunes PRO 3.0
Image 6.1: A detailed view of the ISOtunes PRO 3.0 earbuds and the inline control panel, showing the buttons for power, volume, and multi-function.
6.1 Power On/Off
- Power On: Press and hold the multi-function button for 3 seconds. The LED will flash blue.
- Power Off: Press and hold the multi-function button for 5 seconds. The LED will flash red and then turn off.
6.2 Call Management
- Answer/End Call: Press the multi-function button once.
- Reject Call: Press and hold the multi-function button for 2 seconds.
- Voice Assistant: Double-press the multi-function button to activate your device's voice assistant.
6.3 Music Playback
- Play/Pause: Press the multi-function button once.
- Next Track: Press the volume up (+) button for 2 seconds.
- Previous Track: Press the volume down (-) button for 2 seconds.
6.4 Volume Control
- Increase Volume: Press the volume up (+) button.
- Decrease Volume: Press the volume down (-) button.
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. Care and Maintenance
- Cleaning: 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.
- Storage: Store the earbuds in the provided carrying case when not in use to protect them from dust, moisture, and physical damage.
- Water Exposure: While IP67 rated, avoid prolonged submersion. Ensure the USB-C port cover is securely closed before exposure to water or dust.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds do not power on | Low battery | Charge the earbuds using the USB-C cable. |
| Cannot pair with device | 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. |
| Poor sound quality or low volume | Improper eartip fit; Low battery; Source audio quality | Adjust eartips for a secure seal. Charge earbuds. Check audio source quality. |
| Intermittent connection | Interference; Out of range; Low battery | Move away from other wireless devices. Reduce distance to paired device. Charge earbuds. |
9. Technical Specifications
| Feature | Specification |
|---|---|
| Model Name | PRO 3.0 |
| Item Model Number | IT-21B |
| Noise Reduction Rating (NRR) | 27 dB |
| SafeMax Volume Limit | 85 dB |
| Bluetooth Version | 5.4 (with LE Audio & Auracast support) |
| Battery Life | Up to 20 Hours |
| Charging Time | Approx. 1.5-2 hours (10 min quick charge for 2 hours use) |
| Charging Port | USB-C |
| Water Resistance Level | IP67 (Dust, Sweat, and Waterproof) |
| Durability Standard | MIL-STD 810H (Military Drop & Shock) |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 32 Ohm |
| Item Weight | 8.1 ounces |
| Product Dimensions | 4.75 x 4.5 x 2.25 inches |
| UPC | 850045924232 |
10. Warranty and Customer 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.
