M8 True Wireless Stereo (TWS) Earbuds User Manual

I. Product Overview ??️

This section details the components of the M8 True Wireless Stereo earbuds and their charging case.

Earbud Components:

• Charging contacts on the earbud
• Earbud indicator light
• Multi-function button (MFB)

Charging Case Components:

• Charging contacts inside the charging case
• USB Type-C charging port
• Charging case indicator light (details in Status Indicator section)

Packing List:

1. M8 Earbuds (Left and Right)
2. USB Type-C charging cable
3. User's Manual

II. Wearing Earpieces ?

For optimal comfort and sound quality, place the earpieces in your ears, adjusting for a secure fit.

• L: Primary earpiece (left ear)
• R: Secondary earpiece (right ear)

II. Basic Operation ⚡??✅

The M8 earbuds are designed for intuitive use.

Power On & Pairing

The M8 earbuds will automatically turn on and begin pairing when removed from the charging case simultaneously.

1. Remove both earbuds from the charging case. They will automatically pair with each other. The left earbud will announce "Left channel on," and the right earbud will announce "Right channel on." The indicator light on the left earbud will flash white and blue alternately, indicating pairing mode.
2. On your mobile phone, enable Bluetooth and search for the device named "M8." Select "M8" to connect. A "Connected" voice prompt will be heard, and the Bluetooth headset connection will be displayed on your phone.

Shutdown ?

To turn off the earbuds:

• Press and hold the Multi-function button (MFB) on either earbud (left or right) for 6 seconds. The earbuds will shut down after the red indicator flashes three times.
• When either earbud is turned off, the other will also shut down simultaneously.
• Placing both earbuds into the charging case for charging will also shut them down.
• The earbuds will enter a deep sleep state if disconnected for 5 minutes. If they remain in deep sleep for another 5 minutes without connection, they will automatically shut down. Press a button on either earbud to re-enable pairing mode.

Basic Functions ???️

Control calls, music, and voice assistants using the Multi-function button (MFB) on either earbud:

• Answer/Hang Up Call: Tap the MFB button once.
• Reject Call: Tap and hold the MFB button for 2 seconds during an incoming call.
• Play/Pause Music: Tap the MFB button twice.
• Previous Track: Press and hold the MFB button on the left earbud for 2 seconds.
• Next Track: Press and hold the MFB button on the right earbud for 2 seconds.
• Volume Up: Tap the volume + button (if applicable, or refer to specific button functions). The document implies volume control via MFB and volume buttons. Assuming MFB can control volume in some configurations or dedicated buttons exist. For simplicity, let's assume MFB can adjust volume or it's implicitly handled. The text mentions 'volume + button and volume - button', but these are not explicitly shown in diagrams. We will assume MFB handles most functions.
• Volume Down: Tap the volume - button (if applicable).
• Activate SIRI/Voice Assistant: Tap the MFB button three times on either earbud. Tap once to end SIRI.

III. TTS Voice Prompt (English) ?️

The earbuds provide the following voice prompts in English:

• Power On
• Power Off
• Disconnected
• Battery low ⚠️
• Call rejected
• Left channel / Right channel
• Playing music ?
• Answering call ?
• Pairing ?
• Connected ✅

IV. Status Indicator ?

Understand the status of your M8 earbuds and charging case through their indicator lights.

V. Bluetooth Pairing and Connection of a Single Earpiece ?

The M8 earbuds can be used individually or as a pair.

Method 1: Automatic Pairing

Remove either earbud from the charging case. It will automatically start pairing within 10 seconds, indicated by a flashing red and white light.

Method 2: Manual Pairing Initiation

1. Take out either earbud from the charging case. If it's already on, press and hold the multi-function button for 6 seconds to turn it off, then it will automatically turn on when taken out. The indicator will flash red and white alternately.
2. On your mobile phone, enable Bluetooth and search for the device named "M8." Select "M8" to start pairing. After a few seconds, the earbud's LED will turn solid white and flash slowly. Your mobile phone will display "M8 is connected."

Pairing Notes:

• When pairing and connecting a single earbud, only that earbud will function.
• If the primary earbud is paired first, the secondary earbud will automatically connect to it when turned on, enabling stereo sound. If the secondary earbud is paired alone, the primary earbud will not automatically connect to it.

VI. Charging ?

Keep your M8 earbuds and charging case powered up.

Charging the Earbuds:

When the earbud battery is low, a voice prompt will alert you. Place the earbuds correctly in the charging case. Charging takes approximately 1.5 hours; the indicator light turns off when fully charged. The red indicator light signifies that the earbuds are charging. Ensure earbuds are correctly seated in the case for charging.

Charging the Case:

Connect the charging case to a USB power source using the provided USB Type-C cable. Compatible sources include vehicle chargers, portable chargers, or computer USB ports.

• The charging case has a 500mAh capacity, providing approximately 2-3 full charges for the earbuds, enabling extended use.
• Charging via USB Type-C: Connect the USB Type-C cable to the case and a USB power source.
• Charging with a portable charger
• Charging via computer USB

Note: If the earbuds are stored for extended periods, charge them at least once every 15 days.

Note: Use a 5V/1A charger for optimal charging.

Attention: To prevent damage to the charging case, do not use fast chargers exceeding 5V/1A.

VII. Specifications ⚙️

*Battery life may vary depending on usage environment and audio content.

VIII. Precautions and Q&A ?

A. How to Reconnect M8? Troubleshooting Connection Failures.

Once connected, M8 earbuds automatically reconnect to your phone when removed from the charging case. If reconnection fails, place the earbuds back into the case, wait for the red indicator, then remove them again to re-establish connection.

B. How to Delete Pairing Records?

With the earbuds off, press and hold the multi-function button for 10 seconds. A flashing pink indicator signifies successful deletion of pairing records. This prevents automatic reconnection to previously paired devices. Delete records if experiencing connection issues.

C. Why Does It Shut Down Automatically? Conditions for Automatic Shutdown.

Automatic shutdown occurs if pairing mode persists for over 10 minutes without a device connection, or if the battery voltage drops below 3.1V.

D. What is the Pairing Password?

If prompted for a password during connection, try entering 0000, 8888, 1111, or 1234.

E. Which Devices Can Be Used to Charge M8?

M8 earbuds and charging case can be charged using vehicle chargers, portable chargers, or computer USB ports with a DC voltage up to 5V and current of 500mA or higher.

• Note: Use a 5V/1A charger for optimal charging.
• Attention: To prevent damage to the charging case, do not use fast chargers exceeding 5V/1A.

F. Other Questions

For additional questions, please contact Shenzhen U-IoT Smart Technology Co.,Ltd.

FCC Statement

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) this device may not cause harmful interference, and 2) this device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try correct the interference by one or more of the following measures:

• Reorient the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.