ISOtunes Free - User Manual

ISOtunes Free
TWS Bluetooth Headset
User Manual
1）
2）Charging Base Indicator
3）Micro USB Charging Port
4）Indicator and Mic Hole
5）MFB
6）Charging Pogo Pin
7）Ear Tips
Charging Base Opening Snap
Headset (R)
Erect headset and place
them into the cochlea
Step②
Slightly rotate headset until it firm
Step③
Make the headset to cochlear edge tightly
USB charging port
Use the USB cable to connect with computer
Use the USB cable to connect with
mobile phone charger
Headset (L)
1
2
3
6
7
4
5
The red will flash according times
until the battery is up to the
corresponding level and will be
always on when it is fully charged,
Bluetooth headset should be used with the compatible devices
which support Bluetooth wireless technology. This allows you to
make two calls and enjoy the music streaming at any time freely.
Please read this user manual carefully before using the headset,
and also read your device’s user manual regarding the Bluetooth
function, and pay attention to those important safety and
maintenance information.
Please keep the headset away from children.
Specifications
*The time mentioned above may vary due to user's operation mode and
device settings.
Bluetooth Version：
Bluetooth Profiles Supported：
Audio Decoding Protocol：
Transmission Power：
Operation Range：
Frequency Range：
Battery of Headset：
Charging Voltage of Headset：
Charging Time of Headset：
Battery of Base：
Charging Voltage of Base：
Charging Time of Base：
Charging Headset Times from
Charging Base：
Music Playing Time：
Talk Time：
Standby Time：
Driver：
Driver sensitivity ：
Driver impedance：
Driver frequency ring range：
Dimensions of Charging
Base(mm)：
Dimensions of Headset(mm)：
Weight(one headset)：
Total Weight ：
V5.0
HFP, HSP, A2DP, AVRCP
SBC, AAC, APTX
Class 2
Up to 10 meters
2.4GHz-2.48GHz
45mAH Li-polymer Battery
5V±0.2V
About 1.5 hours
420mAH Li-polymer Battery
5V±0.2V
About 2hours
2-3 times
≥ 7.0 hours
≥ 7.0 hours
About 100 hours
φ6mm
90±3dB
16Ω±15％
20HZ-20kHz
L80×W33×H31
L26×W16.6×H24.8
About 4.6g
About 54g
Status No. Status Charging Base Performance
1
2
3
5
4
6
The indicator light of the headset flashes blue once every
5 seconds
The
headset(R)
Single Pairing
TWS Pairing Mode
Standby Mode
Call Mode
Headset Charging
Mode
7
The indicator light flashes red once every 20 seconds
Power Off State
Headset Mode
Charging Base Mode
When in a call, the indicator light of the headset flashes
red every 5 seconds
The indicator light of headset(R) flashes red and blue
alternately
After TWS pairing successful, the indicator light of right
headset alternately flashing red and blue, when the right
headset pairing successful with mobile phone, the
indicator light flashes blue once every 5 seconds
The indicator light flashes red for three times.
Low Voltage
Alarm State
Status No. Status Headset Performance
1
Charging Mode of
the Charging Base
Identify according to L&R and
wear the headset (R) and
headset (L) respectively
8
The indicator light flashes blue for three times.
Power On State
Structure Sketch
Step①
Wearing Steps:
Charging Ways of Headset
The indicator light of headset is
red when being charged, and
will turn off automatically after
being fully charged
Put the headset (L) (R) to the corresponding position in the bottom
of the charging base.
Charging Ways of Charging
Base
Use the USB charging
cable
to charge
Turning ON/OFF
Method
Pick up the headsets from the charging base to turn on automatically.
Put them back to power off and charge the headset.
Method
In OFF MODE, press and hold headset(R) or headset(L) MFB for
2 seconds to turn on.
In ON MODE, press and hold headset(R) or headset(L) MFB for
5 seconds to turn off.
The indicator light of the headset is red when being
charged, and will turn off automatically after being fully
charged
The indicator flashing red once every 5 seconds means
25% battery, twice means 50% ,3 times means 75% and 4
times means full battery(100%).
Charging Base
Baterry Indication
2
1.The indicator flashes red when being charged. The red
will flash according times until the battery is up to the
corresponding level.
2. No being charged or discharging to the earbuds, the
indicator is off
3.The indicator light is red when being fully charged
Check the charging device is suit to the headset or not.
Note 1:
Note 2:
Note 3:
Use only the supplied charger to charge the headset, if use
other device may violate the validation or the maintenance
article of this product and may cause danger.
Do not attempt to force open the built-in battery as this could
damage the headset.
Note 4:
Note 5:
Note 6:
A fully charged headset will lose its power automatically if left
unused. It is recommended to charge the headset each three
months.
Do not leave the headset in a too hot or too cold condition (best
between -10℃ and 50℃) which may affect the headset's operations
although it is fully charged.
Do not dispose of the headset into fire or water.r.

Summary

Product Specifications

Structure Sketch

Headset Mode Indicators

Details indicator lights and status for headset operations in different modes.

Charging Base Indicators

Explains indicator lights and battery status for the charging base.

Wearing and Charging Procedures

Wearing Steps

Step-by-step guide on how to properly wear the earbuds for a secure fit.

Charging Headset and Base

Instructions on how to charge the headset and the charging base using USB.

Power Operations

Turning ON;OFF Methods

Methods for powering the headset on and off, including automatic and manual operations.

Connectivity and Pairing Guide

TWS Pairing

Guide to pairing the two earbuds together and connecting them to a device.

Master-slave Switching

Explanation of how the master and slave roles are assigned and handled.

Call and Communication Features

Call Handling

Instructions for answering, ending, rejecting calls, and voice dialing.

Two-call Handling

Managing multiple calls, including holding and switching between them.

Media Control and Maintenance

Music Playback Controls

Controls for playing, pausing, and navigating music tracks.

Volume Adjustment

How to increase or decrease the volume using the headset controls.

Delete Pairing Records

Steps to delete saved Bluetooth pairing records from the headset.

Maintenance

Guidelines for cleaning and caring for the headset to prevent damage.

Troubleshooting and Compliance

Trouble Shooting

Common issues and their solutions for headset operation.

Overview

1. Function Description
2. Usage Features
3. Turning On/Off
4. TWS Pairing
5. Master-Slave Switching
6. TWS Reconnection
7. Call Handling
8. Music Playback
9. Wearing Steps
10. Maintenance Features
11. Charging
12. Cleaning and Handling
13. Troubleshooting
14. Deleting Pairing Records

The ISOtunes Free TWS Bluetooth Headset is designed for users seeking a wireless audio experience with the convenience of true wireless stereo (TWS) functionality. This headset allows for both making calls and streaming music freely, making it suitable for a variety of daily activities. It is compatible with devices that support Bluetooth wireless technology.

Function Description

The headset operates as a true wireless stereo system, meaning the left and right earbuds function independently while also being able to connect to each other for a stereo experience. It supports Bluetooth profiles such as HFP, HSP, A2DP, and AVRCP, ensuring broad compatibility with various Bluetooth-enabled devices. Audio decoding protocols like SBC, AAC, and APTX are supported, aiming to provide quality sound transmission. The headset has a transmission power classified as Class 2, offering an operation range of up to 10 meters.

Usage Features

Turning On/Off:

The headset offers two methods for powering on and off. The first method involves simply picking up the headsets from the charging base to automatically turn them on. Placing them back into the charging base will power them off and initiate charging. The second method requires manual operation: in the OFF mode, press and hold the Multi-Function Button (MFB) on either the right (R) or left (L) headset for 2 seconds to turn them on. To turn them off, in the ON mode, press and hold the MFB on either headset for 5 seconds.

TWS Pairing:

For initial setup or after clearing pairing records, the headsets should be paired within 20cm of each other without obstruction.

• Method 1 (Automatic): Pick up both headsets from the charging base. After a few seconds, they will automatically enter auto-pairing mode and connect to each other. The right headset (R) will then alternately flash red and blue, indicating it's ready to pair with a mobile phone. Users can then open their phone's Bluetooth settings and search for "ISOtunes Free-R" to connect.
• Method 2 (Manual): In the OFF state, press the MFB key on both headsets for 2 seconds to power them on. After a few seconds, they will enter auto-pairing mode and connect to each other. Similar to Method 1, the right headset (R) will then alternately flash red and blue, signaling readiness for phone pairing. Users should then search for "ISOtunes Free-R" in their phone's Bluetooth settings. Upon successful TWS pairing, the headset will prompt "Pairing successful." After TWS connection, the right headset (R) enters pairing mode with the phone, prompting "pairing." The phone will then search for Bluetooth devices, and users should select "ISOtunes Free-R" from the list. The right headset will prompt "Pairing successful," and both left and right headsets will prompt "dengdong," followed by the right headset prompting "Connected." If the mobile phone issues a Bluetooth pairing request (common with iPhones), users should select "match."

Master-Slave Switching:

The headsets automatically establish a master-slave relationship upon being turned on, with the right headset defaulting as the master. If the master headset is placed in the charging box, the slave headset will automatically connect to the mobile phone, allowing for continuous use. If the left headset is turned on first and reconnected to the mobile phone, the left headset becomes the master headset, and the right headset becomes the slave. For single connection, both TWS and mobile pairing records are required.

TWS Reconnection:

• Method 1 (Manual Power On): Press the MFB of either headset (R) or (L) for 2 seconds to power on. After a few seconds, the two headsets will connect automatically. The headset will then pair with the previously connected mobile phone, reconnecting successfully after a few seconds.
• Method 2 (From Charging Base): Pick up the headsets from the charging base to power on. After a few seconds, the two headsets will connect automatically. The headset will then pair with the previously connected mobile phone, reconnecting successfully after a few seconds. Upon successful TWS reconnection, both the right and left headsets will prompt "Dengdong," and the right headset will prompt "Connected" after reconnecting with the mobile phone.

Call Handling:

• Answer/End a Call: When a call comes in, a short press of the MFB on either headset (R) or (L) will answer the call. In call mode, a short press of the MFB on either headset (R) or (L) will end the call, accompanied by the "Call End" prompt.
• Reject a Call: To reject an incoming call, press and hold the MFB on either headset (R) or (L) for 2 seconds. The speaker will prompt "Doo, Call Reject."
• Voice Dialing: In standby or music playing mode, a short press of the MFB on the left headset (L) will activate voice dialing (this function is dependent on the phone's support for voice dialing).
• Two-Call Handling: This feature is supported only by mobile phones with two-call handling capabilities.
  • When answering a call and another call comes in:
    • Long press and hold the MFB for 2 seconds to end the current call and answer the incoming call.
    • Short press the MFB to hold the current call and answer the incoming call.
    • After the second implementation, short press the MFB to switch between the two calls.
    • After the second implementation, long press the MFB for 2 seconds to end the current call, and short press the MFB to end the other call. These operations require adherence to Bluetooth hands-free profile V1.5 and phone holding functions (network services).

Music Playback:

• Music Pause/Playing: In standby mode, a short press of the MFB on the right headset (R) will play music. While music is playing, a short press of the MFB on the right headset (R) will pause the music.
• Volume +/-: In call or music playing mode, double-click the MFB on the right headset (R) to increase volume, and double-click the MFB on the left headset (L) to decrease volume. A "Doo" sound will be heard from either headset when the volume reaches its maximum or minimum level.
• Forward/Backward: In music playing mode, long press the MFB on the right headset (R) for 2 seconds to skip to the next song. Long press the MFB on the left headset (L) for 2 seconds to go back to the previous song.

Wearing Steps:

1. Step 1: Erect the headset and place them into the cochlea.
2. Step 2: Slightly rotate the headset until it feels firm.
3. Step 3: Make sure the headset is tightly fitted to the cochlear edge. The headsets are identified as L (left) and R (right) and should be worn accordingly.

Maintenance Features

Charging:

• Headset Charging: Place the headset (L) and (R) into their corresponding positions at the bottom of the charging base. The indicator light on the headset will show red when charging and will turn off automatically once fully charged.
• Charging Base Charging: Use the provided USB charging cable to charge the base. The red indicator light will flash according to the battery level until fully charged, at which point it will remain steadily on. The indicator flashing red once every 5 seconds means 25% battery, twice means 50%, three times means 75%, and four times means full battery (100%).
• Charging Precautions:
  • Ensure the charging device is suitable for the headset.
  • Only use the supplied charger to avoid invalidating the warranty or causing danger.
  • Do not attempt to force open the built-in battery.
  • A fully charged headset will lose power if left unused; it is recommended to charge it every three months.
  • Avoid leaving the headset in extreme temperatures (-10°C to 50°C is optimal) as this can affect operation.
  • Do not dispose of the headset in fire or water.

Cleaning and Handling:

• Do not use abrasive cleaning solvents.
• Prevent contact with sharp objects to avoid scratching and damage.
• Keep the headset away from high temperatures, humidity, and dust.

Troubleshooting:

The manual provides a troubleshooting guide for common issues such as:

• Cannot turn on: Suggests low battery protection for either the headset or charging base. Solution: Charge headsets and/or charging base for 1-2 hours.
• No sounds after pairing: Indicates wrong pairing. Solution: Pair again.
• TWS pairing failure/cannot find headset (R): Suggests too many pairing records. Solution: Delete pairing records.
• Charging base without indicator light: Indicates DC power supply not outputting power. Solution: Check if the micro USB charging line is plugged in correctly.
• Headsets without indicator light when charging: Suggests the headsets are not correctly seated in the charging base or the charging base needs charging. Solution: Check charging interface and charge the base.
• Turning off automatically: Indicates low battery. Solution: Charge headset for 1-2 hours.
• Headset echo: Suggests volume is too loud or noisy environment. Solution: Adjust volume or change location.
• Noise in call: Indicates environmental interference or distance issues. Solution: Change location or move headset closer to the mobile phone.
• Low voice of the calling party: Suggests incorrect wearing position. Solution: Adjust wearing position.

Deleting Pairing Records:

In OFF mode, press the MFB on either headset (R) or (L) for 10 seconds (this includes 2 seconds for ON mode, then 8 more seconds) until "Doo" is heard 3 times, and the indicators flash red and blue twice simultaneously.

ISOtunes Free Specifications

General

Type	In-ear
Noise Reduction Rating (NRR)	22 dB
Bluetooth Version	5.0
Water Resistance	IP45
Microphone	Yes
Wireless	Yes
Charging Time	2 hours
Warranty	1 year
Compatibility	Bluetooth-enabled devices
Battery Life	Up to 7 hours (earbuds), additional 14 hours with charging case