k79 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. First-time Use Wearing Turning O Restoring factory settings Function Overview Specications Important Safety Information Product Overview Charging Case Indicator Charging Case Button Charging Port Earbuds Secondary Microphone Primary Microphone Open the lid and take out earbuds. Remove the protective lm. Put back for charging and open the lid for paring. Gently place the earbud into your ear canal, then adjust it to a comfortable position. During calls, make sure to point the primary 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 t. Charging Turning On Connect the charging cable to the charging case and keep the earbuds inside the case to charge simultaneously. 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. 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 o once fully charged. When turned on and out of the charging case, the earbuds will automatically turn o 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 After the charging case is opened, the indicator on it 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 indicator will turn o after 7 seconds; otherwise, it will turn o automatically after blinking slowly for 1 minute. Note: If the earbuds cannot be connected, place them back into the charging case, close the lid and 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. Press and hold the charging case button for about 2 seconds to search and connect with the earbuds on a new device. 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 within 10 minutes, they will automatically enter the low-power consumption mode. Disconnected If the device's Bluetooth is disabled, or the earbuds are too far to connect with the device, the earbuds will automatically enter the awaiting connection mode. The earbuds will enter the low-power consumption mode if remaining disconnected for 10 minutes and turn o automatically after about 1 hour if no operation is made. 1. 2. 3. Place the earbuds into the charging case. Press and hold the charging case button for at least 10 seconds until the indicator on the charging case stays on for about 3 seconds and then blink 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. Note: Once the weather is cold outdoors and your hands become dry, the buds may not function when touching them. Answer/End 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 Change to noise cancellation mode Press and hold either earbud to change the mode while wearing both buds. Name: Wireless Earphones Model: M2137E1 Frequency Band: 24022480 MHz Max RF Output Power: < 20 mW Storage Temperature: 0 C to 45 C Operating Temperature: 0 C to 45 C Service Life: 1 year Earbuds Dimensions: 21.7 18.1 24.5 mm Wireless Range:
10 m (in an obstacle-free environment) Input: 5V=100mA Wireless Connectivity: Bluetooth 5.2 Charging Case Model: M2137E1 Dimensions: 65 48.6 24.5 mm Input: 5V=450mA Output: 5V=240mA 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 re, 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 re 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 re. 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 re 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 ammable liquid or gas. A battery subjected to extremely low air pressure that may result in an explosion or the leakage of ammable liquid or gas. Product information and certication 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. EU DECLARATION OF CONFORMITY Hereby, Chongqing Qianxing Technology Co., Ltd. declares that the radio equipment type M2137E1 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:
http://www.mi.com/global/service/support/
declaration.html Hereby, Chongqing Qianxing Technology Co., Ltd. declares that the radio equipment type M2137E1 is in compliance with Radio Equipment Regulations 2017. The full text of the UKCA declaration of conformity is available at the following internet address:
https://www.mi.com/uk/service/support/
declaration.html WEEE Information All products bearing this symbol are waste electrical and electronic equipment (WEEE as in directive 2012/19/EU) which should not be mixed with unsorted household waste. Instead, you should protect human health and the environment by handing over your waste equipment to a designated collection point for the recycling of waste electrical and electronic equipment, appointed by the government or local authorities. Correct disposal and recycling will help prevent potential negative consequences to the environment and human health. Please contact the installer or local authorities for more information about the location as well as terms and conditions of such collection points. 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. Any Changes or modications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: 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 o and on, the user is encouraged to try to correct the interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC/ISED radiation exposure limits set forth for an uncontrolled environment. End user must follow the specic operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The portable device is designed to meet the requirements for exposure to radio waves established by the ISED. These requirements set a SAR limit of 1.6 W/kg averaged over one gram of tissue. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:
1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device. FCC ID: 2AW4L-M2137E1 IC: 2042B-M2137E1 CAN ICES-003(B)/NMB-003(B) CS34564 Energy Efficiency Verified 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 User Manual Version: V1.0 For further information, please go to www.mi.com