Height: 37.5 mm
Width: 21 mm
Depth: 23.9 mm
Weight: About 5.5 gCharging case
Height: 48.0 mm
Width: 61.8 mm
Depth: 27.5 mm
Weight: About 36.5 g
*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.
Press control: twice times / long press
Bluetooth Compatibility: BT 5.2
Pop-up pair: supported*
Wear detection: supported
*Requires smartphones running EMUI10 or above.
Per earbud: 55 mAh (min.)*
Charging case: 215 mAh (min.)*Playtime:
Music playback duration: 10 hours (with noise canceling disabled)**
Music playback duration: 7.5 hours (with noise canceling enabled)**
Voice call duration: 6.5 hours (with noise canceling disabled)***
Voice call duration: 5.5 hours (with noise canceling enabled)***Battery type:
Lithium-ion polymer battery
*Huawei conducted tests with a prototype of the HUAWEI FreeBuds 4i earbuds and the accompanying software using the HUAWEI P40 phone.
**Music playback test: The earbuds were connected to the phone over Bluetooth for music playback in the AAC format with the volume set to 50%. The battery was completely discharged until the music stopped playing from one of the earbuds.
***Voice call test: The earbuds were connected to the phone over Bluetooth with the volume set to 50%. A voice call was then conducted until the voice could not be heard from one of the earbuds.
The battery life will vary depending on the device settings, usage, and other factors.
Both earbuds use built-in capacitive sensors
10 mm Dynamic
Active noise cancellation
Call noise cancellation
Silicone ear tips (three sizes.)
USB-C charging cable
Quick start guide