HUAWEI FreeBuds 4 Specification

• Dimensions
  Per earbuds:

  Height: 41.4 mm

  Width: 16.8 mm

  Depth: 18.5 mm

  Weight: About 4.1 g

  Charging case:

  Diameter: 58 mm
  

  Height: 21.2 mm

  Weight: About 38 g（Without Earbuds）

  *Product size, product weight, and related specifications are theoretical values only. Actual measurements between individual products may vary. All specifications are subject to the actual product.

• Battery
  Battery capacity

  Per earbud: 30 mAh (min.)*

  Charging case: 410 mAh (min.)*

  Playtime:

  Music playback on 1 charge: 4 hours (with ANC disabled)**

  Music playback on 1 charge: 2.5 hours (with ANC enabled)**

  Music playback with charging case: 22 hours (with ANC disabled)**

  Music playback with charging case: 14 hours (with ANC enabled)**

  Charging Time:

  About 1 hour for the earbuds (in the charging case)**

  About 1 hour for the charging case (wire, without earbuds)**

  *Typical value. Actual capacity may vary slightly. This capacity is the nominal battery capacity. The actual battery capacity for each individual phone may be slightly above or below the nominal battery capacity.

  **Based on the test results of HUAWEI lab, for reference only.

• Controls

  Swipe

  Tap-twice

  Press and hold controls

• Connectivity
  Bluetooth Compatibility:

  BT 5.2

  Pop-up pair:

  supported*

  Simultaneous Bluetooth connection with dual devices:

  supported

  *Requires smartphones running EMUI10 or above.

• Sensor

  Microphone

  Wear detection sensor

• Driver

  14.3 mm

• Audio Technology

  Open-fit active noise cancellation

  Call noise cancellation

• Audio Technology

  Open-fit active noise cancellation

  Call noise cancellation

• In The Box

  Earbuds

  Charging case

  Quick Start Guide, Safety Information, and Warranty Card

  Warranty certificate

  USB-C cable