Xiaomi Redmi Buds 4 - Wireless Earbuds Manual

Read this manual carefully before use, and retain it for future reference.

Illustrations of product, accessories, and user interface in the user manual are for reference purposes only. Actual product and functions may vary due to product enhancements.

Product Overview

First-time Use

1. Open the lid and take out earbuds.
2. Remove the protective film.
3. Put both earbuds into the charging case. Close and then open the lid to start pairing.

Wearing

• Gently place the earbud into your ear canal, then adjust it to a comfortable position.
• During calls, make sure to point the talk microphone towards your mouth for clearer calls.

Note: The M-size ear tips are preinstalled. If feeling uncomfortable, please change to size L or S for a better fit.

Charging

Charging the earbuds

When the earbuds are placed in the charging case, they will automatically start charging.

Note: After using the earbuds, place them back into the charging case. This will extend their service life and helps to avoid losing or misplacing them.

Charging the charging case

Use the Type-C charging cable to charge both the earbuds and the charging case. The charging case indicator remains white while charging, and turns off when fully charged.

Turning On

Make sure the charging case is not out of battery with earbuds in it. Open the lid of the charging case, and the earbuds will automatically turn on.

Turning Off

• Make sure the charging case is not out of battery. Put both earbuds back into the charging case and close the lid, they will automatically disconnect and start charging, and automatically turn off once fully charged.
• When turned on and out of the charging case, the earbuds will automatically turn off after about 1 hour if remaining disconnected from the device without any operations (such as being worn on or put back into the case).

Connection

First time connection

When using for the first time, put both earbuds into the charging case and close the lid. Open the lid again and the charging case indicator will blink white slowly for about 1 minute. During this period, enable the Bluetooth function on your phone, and then search and tap "Redmi Buds 4" to connect the earbuds. If the earbuds are connected successfully, the charging case indicator will turn off after 7 seconds; otherwise, it will turn off automatically after blinking slowly for 1 minute.

Note: If the earbuds cannot be connected, close and open the lid and then repeat the above operation.

Connecting to other devices

Make sure the charging case is not out of battery and then place both earbuds in the case. Keep the lid open, and press and hold the charging case button for 2 seconds until the charging case indicator starts blinking. Now you can search and connect with the earbuds on a new device.

When the earbuds are connected, any previously paired device can select and reconnect with the earbuds from its paring records. Once reconnected, the earbuds will disconnect from the current device it is already paired with.

Automatic connection

When the earbuds are in the charging case, opening the lid of the charging case will automatically connect the earbuds to the most recently used Bluetooth device. If the earbuds cannot successfully connect to any Bluetooth device, they will automatically enter the low-power consumption mode.

Disconnected

When the earbuds are connected to a device, if the device's Bluetooth is disabled, the device is too far to be connected to, or both earbuds are in the charging case with the lid closed, the earbuds will disconnect from the device.

Restoring Factory Settings

1. Place the earbuds into the charging case.
2. Methods:
   Method 1: Close the charging case lid. Press and hold the charging case button for about 10 seconds until the charging case indicator stays on for about 3 seconds and then turns off.
   Method 2: Open the charging case lid. Press and hold the charging case button for about10 seconds until the charging case indicator stays on for about 3 seconds and then blinks slowly.

The earbuds are restored to the factory settings. The connection history has been cleared and the earbuds are waiting for a connection.

Note: Due to the technical characteristics of Bluetooth, there may be occasional intermittent loss of connection or sound in areas with dense electromagnetic signal interference at 2.4 GHz.

Function Overview

Note: Once the weather is cold outdoors and your hands become dry, the earbuds may not function when touching them.

During calls

Double-tap: Answer a call

Triple-tap: Decline or end a call

Music

Double-tap: Pause or play

Triple-tap: Play next track

Take out either earbud: Pause music/Wear the earbud back within 120 seconds to resume playing

Noise cancellation mode/Transparency mode

When wearing both earbuds, press and hold either earbud to switch between: Noise cancellation mode <> Transparency mode

How to Use the App

The built-in function can be used with the app after the earbuds are connected to the phone via Bluetooth. Scan the QR code below to download the app.

Connecting with the app

Quick connection

1. Download and open the app.
2. Place the earbuds into the charging case and close its lid. Ensure the phone is unlocked and its Bluetooth is enabled, and hold it close to the charging case. Open the charging case lid and follow the instructions on the phone to connect the earbuds.

Note: Once connected, you can use the app to update the firmware of the earbuds.

Examples of frequently used functions

Once connected with the app for phones, press and hold the multi-function touch area on either earbud (in the app, set the "press and hold" as waking up the voice assistant) to activate the AI voice assistant to assist you in completing tasks by voice.

• Set an alarm for 8:00 tomorrow morning.
• Pause.
• Please speak louder.
• What's the weather like today?
• How do I speak "thank you" in French?

Specifications

Name: Wireless Earphones
Model: M2137E1
Frequency Band: 2402–2480 MHz
Max RF Output Power: < 20 mW
Storage Temperature: 0°C to 45°C
Operating Temperature: 0°C to 45°C

Earbuds

Wireless Range: 10 m (in an obstacle-free environment)
Input: 5 V = 100 mA
Wireless Connectivity: Bluetooth^® 5.2

Charging Case

Model: M2137E1
Charging Port: Type-C
Battery Capacity: 620 mAh
Input: 5 V = 450 mA
Output: 5 V = 240 mA

Important Safety Information

• The product has a built-in battery that can not be removed or replaced. To avoid damage to the battery or the product, do not disassemble or modify the battery by yourself. The battery can only be replaced by the authorized service providers and must be replaced with the same type. Replacement of a battery with an incorrect type may defeat a safeguard (such as catching fire, explosion and leakage of corrosive electrolyte). Do not dispose of used batteries with household waste. Disposal of this product and the used batteries shall comply with local laws and regulations.
• Do not attempt to disassemble, repair or modify the product, as this may cause fire or even completely damage the product.
• Keep the product's indicator away from the eyes of children and animals while the product is in use.
• Do not disassemble, puncture or crush the product nor expose it to fire.
• Please stop using the product immediately and seek medical assistance if the contact area on your skin shows signs of redness or swelling.
• To prevent possible hearing loss, do not use high volume for long periods of time.
  
• This product is not a toy and may contain small parts. Please keep them out of the reach of children.
• Disposal of a battery into fire or a hot oven or water or other liquids or mechanically crushing or cutting of a battery, that can result in an explosion.
• Leaving a battery in an extremely high temperature surrounding environment that can result in an explosion or the leakage of flammable liquid or gas.
• A battery subjected to extremely low air pressure that may result in an explosion or the leakage of flammable liquid or gas.
• Product information and certification marks are located in the Charging Case.
• = The symbol indicates DC voltage.

The Bluetooth^® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Xiaomi Inc. is under license. Other trademarks and trade names are those of their respective owners.

Manufactured for: Xiaomi Communications Co., Ltd.
Manufactured by: Chongqing Qianxing Technology Co., Ltd. (a Mi Ecosystem company)
Address: No. 8, Shuangxing Avenue, Biquan Street, Bishan District, Chongqing Municipality, China

For further information, please go to www.mi.com

Importer:
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