Redmi Buds 4 True Wireless Earbuds (White)

Overview

Up to 35dB hybrid active noise cancellation*
effectively isolate excess outside noise
With hybrid active noise cancellation technology, the feed-forward and feedback microphones work together to effectively separate background noise. Whether you're outdoors, on the bus or metro, one-touch for up to 35dB* noise cancellation. Redmi Buds 4 blocks out the hustle and bustle.

3 ANC level options and adaptive ANC mode
Adaptive mode with scene judgement, help choose the most suitable ANC level for you
Intelligent scene judgement based on ambient noise levels. Redmi Buds 4 intelligently switches between 3 ANC levels under adaptive mode supported by AI algorithm and offers a more comfortable noise-cancellation experience.

AI noise reduction
Make high-quality phone calls without missing a single word
The AI voice algorithm accurately differentiates human voice and ambient noise, so that even in the noisy environments, the listener will hear every word you say, loud and clear.

Dual transparency mode
Effortless communication even with your earbuds on
Want to switch between Music Mode and Chat Mode? Long-press to enter transparency mode and feel free to say hi to friends around you. Set up enhance voice mode* for natural communication with your earbuds on.

10mm dynamic driver unit, 0.006mm ultra-thin diaphragm
Richer vocals, thumping bass
The large dynamic driver unit makes the voice sound crisper, the lower frequencies fuller and the treble brighter. Choose a high-quality 0.006mm diaphragm to bring out even more detail in your favourite music.

Up to 30 hours long battery life with case
Up to 6 hours of battery life on a single charge*
Enjoy up to 6 hours of battery life on a single charge and up to 30 hours* of battery life when paired with a charging case, so you can enjoy great music both day and night. Fast charge supported. Get up to 1 hour of music playback from 5 minutes of charging*. Take a break and then pick up right where you left off.

Specifications

• Product model no.
  M2137E1
• Earbud input parameters
  5V⎓ 100mA
• Charging case input parameters
  5V⎓ 450mA
• Wireless connection
  Bluetooth® 5.2
• Bluetooth protocols
  HSP、HFP、A2DP、AVRCP
• Operating distance
  10m (open space free of obstacles)
• Single earbud net weight
  Approx. 4.5g
• Total weight including charging case
  Approx. 55g
• Charging port
  Type-C
• Speaker impedance
  16Ω±15%

*The images on this page are for illustration purposes only and may not be the exact representation of the product. Product parameters are for reference only. Some product parameters may vary due to external factors such as environment and differences in smartphone systems. Please refer to the actual product for details.
*Noise cancellation test data provided by the National Institute of Metrology, China. Actual results may vary depending on usage conditions. Touching and holding either earbud only enables switching between the ANC and Transparency modes by default. ANC and transparency mode settings available only on Xiaomi Earbuds app.
*Gesture settings and in-ear detection are only available on Xiaomi Earbuds app.
*You can find your earphones via sound on Xiaomi Earbuds app. The earbuds do not support this function when placed in the charging case. According to Xiaomi internal lab data, when searching for your earbuds through via sound within a close range, the distance between the phone and the earbuds should be within 10 meters in a quiet, accessible environment. The earbuds and phone should be connected via Bluetooth. Actual distances may vary depending on environmental conditions.
*IP54 dust and water-resistant test. According to the IED60529-2013. Enclosure Protection Rating (IP Code), it passed the test conducted by Dongguan Dongdian Testing Services Co., Ltd. The IPX4 test report NO. is DDR-R22032211-1R03. The IP5X test report NO. is DDR-R22032211-1R04. The test result showed that it is in compliance with the IED60529-2013 standard. IP54 rating applies to the earbuds themselves, not the earbud charging case. Please do not use your earbuds around hot water, your earbuds cannot be used when bathing or showering. Please try to avoid using your earbuds during strenuous exercise, sweat during exercise may cause damage to the device. This product is splash-proof, water-resistant and dust-resistant at the time of purchase, however, these properties are not permanent and may diminish over time with everyday wear and tear. Your warranty does not cover damage caused to your device by immersion in liquid.
*Battery life and fast charging test conditions: The earbuds' battery level is 100%, volume of the earbuds is adjusted to 50%, the Bluetooth encoding mode is AAC, and the ANC feature, transparency mode and Dual-device connection are turned off through the Xiaomi Earbuds app. Test item: Fully discharge the Redmi Buds 4 battery while playing audio until either earbud stops playing. Ensure that the charging port is free of liquid and foreign objects before charging. Earbud charging and battery life data was retrieved from internal test carried out by the manufacturer. Actual hours of use may vary depending on usage condition, charging level and environmental factors.
*Xiaomi Earbuds app is available for download on Google Play store. Xiaomi Earbuds app is not available for iOS devices.
*Only Xiaomi, Redmi devices with the latest MIUI versions support MIUI Pop-up for Quick Pairing. Compatible models: Redmi Note 11 Pro+ 5G、Xiaomi 12、Xiaomi 12 Pro、Mi 10T Lite、Mi 11、Mi 11 Ultra、POCO F3、POCO F4 GT
*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.
*5 minutes fast charging requires the battery of the charging case to be at 10% or above.