ISOTUNES FREE 2.0 IT-73 (01) PDF DOCUMENT

To ensure the best noise reduction and comfort with your ISOTUNES FREE 2.0 IT-73, follow these steps:

1. Carefully roll the foam eartip on the stem/sound port.

2. Insert the eartip into your ear as deeply as is comfortable.

3. Slightly rotate the earbud until it is secure in the bowl of your ear.

4. Make the earbud rest tightly next to your inner ear edge.

The ISOTUNES FREE 2.0 IT-73 comes with 3 sets of TRILOGY™ Short foam eartips (S, M, L), and 3 sets of double flange silicone eartips (S, M, L). Choose the size that fits best in your ear canal. Remember, the snugger the fit, the better the noise reduction. The silicone eartips are not tested for noise attenuation and should not be used in noisy environments. Improper or careless insertion of the eartip into the ear could cause damage to the inner ear.

The ISOTUNES FREE 2.0 IT-73 earbuds have a Multi-Function Button (MFB) on each earbud. The functions are divided between the left and right earbuds.

Left Earbud Functionality:

VOLUME UP (+): Single Press

VOLUME DOWN (-): Double Press

Right Earbud Functionality:

MUSIC

Play/Pause: Single Press

Next Track: Double Press

Previous Track: Triple Press

PHONE CALL

Answer: Single Press

End/Reject Call: Long Press, 2 Seconds

Mute/Unmute Microphone: Single Press

VOICE ASSISTANT

Initiate Voice Assistant: Long Press, 2 Seconds

There are three batteries to charge on your ISOTUNES FREE 2.0 IT-73: the charging case battery, the left earbud battery, and the right earbud battery.

Charging the Earbuds:

Place the earbuds into the charging case. The earbuds’ LED indicator light should be solid red, indicating that the earbuds are charging. If the LED indicator light doesn’t appear, refer to the troubleshooting section.

Solid Red = Charging (Earbuds in case)

No Light = Fully Charged (Earbuds in case)

Charging the Case:

Insert the included USB-C charging cable to charge the case. The charging case battery indicator light will start flashing to indicate the charge level.

x1 flash = 25% Charged

x2 flashes = 50% Charged

x3 flashes = 75% Charged

x4 flashes = 100% Charged

Solid light = Fully Charged

Important Charging Information: Please charge with the included USB-C cable by plugging it into the charging port. The charging voltage should not exceed 5V. Only charge your ISOTUNES FREE 2.0 IT-73 with a Maximum 5 Volt charger. Using a charger higher than 5 Volts could be dangerous and may damage your product. Be especially careful with “quick charge” or “turbo charge” chargers, which often supply 9, 12, or 15 Volts. Your ISOTUNES FREE 2.0 IT-73 cannot be charged at voltage levels above 5 volts.

There are two methods to power your ISOTUNES FREE 2.0 IT-73 on and off:

Method 1

Power ON: Remove earbuds from the charging case.

Power OFF: Place earbuds into the charging case.

Method 2

Power ON: In OFF mode, press and hold the multi-function button (MFB) for 3 seconds.

Power OFF: In ON mode, press and hold MFB for 6 seconds.

After powering on, the ISOTUNES FREE 2.0 IT-73 headphones will automatically enter pairing mode. You will hear “Bluetooth Pairing Mode” and the LED indicator light will flash, alternating blue and red on both earbuds.

1. Open your Bluetooth settings on your device.

2. Search for “ISOtunes FREE 2.0” to pair and connect.

3. Once connected you will hear “Bluetooth Connected.”

For issues with powering off, pairing, or multi-function button functionality, we recommend a factory reset. As a result, Bluetooth will be disconnected and the device will need to be re-paired.

1. Remove “ISOtunes FREE 2.0” from your paired Bluetooth devices in your smartphone.

2. Open the charging case with the earbuds inside and press both earbud multi-function buttons for ten seconds.

3. LED lights on the earbuds will flash to indicate a successful pairing reset.

4. Follow the Bluetooth pairing instructions to re-pair your device.

TRILOGY™ foam eartips should be regularly inspected for deterioration, cracking, or other damage. The eartips can be cleaned in between uses with a damp cloth and water. Over time, the eartips should be replaced.

• Clean your ISOTUNES FREE 2.0 IT-73 by gently wiping them with a clean, damp cloth with mild soap.

• Do not immerse the earbuds in water.

• Do not use abrasive cleaning solvents to clean the earbuds.

• If the earbuds get wet from sweat or rain, please discontinue use and allow them to dry.

The wearer should ensure the product is properly cleaned and dry before and after use. Storage should be in a clean and dry location between -20 °C and 50 °C. The battery should not be fully discharged before long term storage.

ISOTUNES® FREE 2.0 does an excellent job of blocking outside noise. As such, ISOTUNES® FREE 2.0 should NOT be used in environments where users need to be fully aware of their surroundings for personal safety reasons. For example, do NOT use them while driving a car or riding a motorcycle. Similarly, do NOT use them when riding a bicycle outside. The user is solely responsible for ensuring that ISOTUNES® FREE 2.0 is used ONLY in safe environments.

This product may be adversely affected by certain chemical substances, such as bug spray and sunscreen. Further information may be sought from the manufacturer.

The wearer should ensure that:

• The hearing protector is fitted, adjusted, and maintained in accordance with the manufacturer’s instructions.

• The hearing protector is worn at all times in noisy surroundings.

• The hearing protector is regularly inspected for serviceability.

If these recommendations are not adhered to, the protection afforded by the hearing protector will be severely impaired.

The Noise Reduction Rating (NRR) for the ISOTUNES FREE 2.0 IT-73 is 25 dB.

The Single Number Rating (SNR) for the ISOTUNES FREE 2.0 IT-73 is 31 dB.

H = 30 dB M = 29 dB L = 27 dB

Bluetooth® (HFP)

Bluetooth® (A2DP)

Relationship between sound output level and input signal level