M79 TWS Bluetooth Earphones User Manual

Product Structure Diagram

The M79 TWS Bluetooth Earphones consist of:

• Charging Case
• Earbuds (x2)
• Type-C Charging Cable
• User Manual

Key Components:

• Charging Port
• Charging Case Display Screen
• Function Key (Touch)
• Earbud Indicator Light

Product Operation Introduction

Wearing the Earphones

Clip the ear-clip earphones onto the auricle like wearing an ear clip. Adjust the position of the earphones until the sound effect is clearest.

Pairing and Connection

Pairing: When the earbuds are taken out of the charging case, they automatically turn on and enter pairing mode. If the earbuds are off, long-press the touch key for 3 seconds to turn them on. The indicator light will flash red and blue alternately.

Connecting to Smart Device: Open the Bluetooth list on your smart device and search for "M79". Tap to connect. A prompt tone will sound, and the earbud indicator lights will turn off upon successful connection.

Language Switching: If not connected to a smart device, tap the touch key on either the left or right earbud 4 times to switch languages. The factory default is English.

Music/Game Mode Switching

When the earbuds are connected to a device, tap the touch key on either the left or right earbud 4 times to switch modes. The factory default is Music Mode.

Music Control

• Play/Pause: Double-click the touch key on either the left or right earbud.
• Next Track: Triple-click the touch key on the right earbud.
• Previous Track: Triple-click the touch key on the left earbud.
• Volume Up: Single-click the touch key on the right earbud.
• Volume Down: Single-click the touch key on the left earbud.
• Maximum Volume Alert: A "ding" sound indicates maximum volume.

Voice Assistant

When the earbuds are connected to a phone, long-press the touch key on either the left or right earbud for 2 seconds to activate the voice assistant.

Call Handling

• Answer/End Call: Double-click the touch key on either the left or right earbud during an incoming call or call state.
• Reject Call: Long-press the touch key on either the left or right earbud for 2 seconds during an incoming call.

Powering On/Off

• Power On: Take earbuds out of the charging case; they turn on automatically. Alternatively, long-press the touch key for 3 seconds.
• Power Off: Place earbuds into the charging case; they turn off automatically. Alternatively, long-press the touch key for 5 seconds.

Pairing Status

• Pairing: Indicator lights flash red and blue alternately.
• Connected: Main earbud light is blue, secondary earbud light is off.

Clearing Pairing Records

If the earbuds are not connected to a Bluetooth device or are disconnected, tap the touch keys on both the left and right earbuds 5 times. This will clear the pairing records with previously connected Bluetooth devices and the earbuds will automatically turn off. This function is useful for:

• When both earbuds fail to pair and reconnect.
• When earbuds are connected by other Bluetooth devices.
• When earbuds have been connected to multiple Bluetooth devices, causing long and unstable connection times.
• When pairing records need to be cleared.

Note: If a single earbud has no sound or cannot be paired, follow the reset operation described above.

Low Battery Alarm

When the earbud voltage is below 3.3V, a prompt will sound, and the earbud indicator light will flash red every 5 seconds until powered off.

Disconnection

When out of effective connection range or when Bluetooth is manually disconnected on the smart device, the main earbud indicator will flash red and blue alternately, and the secondary earbud light will turn off. A "Disconnected" prompt will be heard.

Automatic Reconnection

After powering on or disconnecting, the earbuds will automatically reconnect to the last connected smart device within the effective range.

Earbud Charging

Place the earbuds into the charging case. They will automatically turn off and begin charging. The earbud indicator light will be solid red and turn off when fully charged.

The charging case will charge the earbuds and display the current battery level and charging status on its screen. When the earbuds are fully charged, the charging indicator light will turn off, and the charging case screen will stop displaying the charging status, eventually turning off after 15 seconds.

Charging Case Charging

When the charging case battery is low, connect it to a standard 5V power adapter using the Type-C charging cable. The charging case screen will light up and display the current battery level. When fully charged, the screen will display "100" and remain lit.

Note: When Bluetooth earbuds are connected to a smart device and switched to game mode, the usage time and connection distance may be reduced.

Troubleshooting

Safety Guidelines

1. Please use the product according to this manual to avoid damage due to incorrect operation.
2. Keep this product away from children, fire sources, heat sources, freezing sources, water sources, and chemicals.
3. Do not listen at high volume for extended periods to avoid adverse effects on hearing.
4. It is recommended to use this product in an environment of -0°C to 45°C. Battery performance may be limited when the ambient temperature is below +5°C.
5. Do not use this product in places where wireless devices are explicitly prohibited by law, as it may interfere with other electronic devices or cause other dangers.
6. Consult local staff before using near medical and industrial equipment or before boarding an aircraft.
7. Stop using this product, close all applications, and disconnect all connections or cables to other devices before cleaning and maintenance.
8. Dispose of waste electronic products correctly according to local regulations. Do not discard electronic and electrical equipment, components, and batteries with other household waste.
9. First-time use: Please fully charge the product before use.
10. The product is not a toy. Children under 12 years of age must use it under adult supervision.
11. Please use a 5V/1A charger certified by a formal manufacturer. Avoid using fast charging chargers that support high voltage, as they may damage the product.
12. Charge in a safe environment. When charging the charging case, please unplug the charging cable as soon as the battery is full to avoid damaging the battery due to prolonged charging. The charging method for the charging case is via a Type-C interface.
13. Do not immerse the product and accessories in any liquid or rinse the product with water, as this may cause fire or electric shock hazards.
14. Do not place the product in direct sunlight or high-temperature locations. High temperatures can shorten the lifespan of electronic components, damage the battery, and deform some plastic parts.
15. Do not store the product in dusty places or places with excessively high or low temperatures and humidity.
16. This product has a built-in non-removable rechargeable battery. Repeated charging and discharging of the earbuds will lead to a decrease in battery performance over time, which is normal for all rechargeable batteries.
17. Do not place magnetic stripe cards (e.g., bank cards, transit cards, etc.) in prolonged contact with this product, as this may damage the magnetic stripe cards due to the magnetic field.
18. Do not apply excessive pressure to the product, or disassemble, drop, or vibrate the product to prevent damage.
19. Do not use this product near heat sources such as radiators, heat adjusters, stoves, or other heat-generating instruments.
20. When using this product during activities that require concentration, pay attention to your own and others' safety, such as driving or cycling. On roads, construction sites, railways, or while walking, remove the earphones or adjust the volume to ensure you can hear surrounding sounds, including alarms and warning signals.
21. Comply with the regulations of your region or country when using this product while driving.
22. This product contains magnetic materials. When using or placing the product, keep it away from appliances with strong magnetic or electric fields, such as microwave ovens, refrigerators, etc.
23. Avoid exposing this product and its accessories to rain or moisture. Do not use this product during strenuous exercise or when sweating heavily to prevent liquid from penetrating the product and causing damage.
24. The product contains a built-in polymer lithium battery, which is not replaceable. Do not discard it or put it in fire, to avoid dangers such as explosion or fire.
25. If personal and property damage caused by consumer misuse of the above warnings is incurred, the consumer will bear all consequences, and the company will not bear any legal liability.

Earphone Parameters

Quality Certificate

Model: M79

Checker: [Signature/Stamp Area]

Inspection Date: PASS

Inspection Mark: [Inspection Mark Area]