Device library
Huawei FreeBuds 4
Huawei FreeBuds 4 specifications and highlights: Wired USB-C; no wireless charging for the official case (though some versions might support wireless case), With ANC off: ~4 hours on earbuds alone; up to ~22 hours combined with case. With ANC on: ~2.5 hours on earbuds; ~14 hours with case battery.
- Brand
- Huawei
- Battery
- Wired USB-C; no wireless charging for the official case (though some versions might support wireless case), With ANC off: ~4 hours on earbuds alone; up to ~22 hours combined with case. With ANC on: ~2.5 hours on earbuds; ~14 hours with case
- Launch
- May 2021, Available
Full specifications
Clean, structured specifications for readers, search engines, and AI systems that need product details in a reliable format.
launch
- month
- May
- year
- 2021
- status
- Available
dimensions
- size
- Earbud: 41.4 × 16.8 × 18.5 mm | Case: ~58 × 21.2 mm
- weight
- 38
build
- protection
- IPX4 (earbuds splash resistant)
- materials
- Plastic frame
features
- type
- Wireless earbuds
- compatibility
- Android, iOS, Huawei/HarmonyOS devices, Windows via BT
- details
- Open-fit Active Noise Cancellation 2.0 with dual-microphones & adaptive ear-matching tech, Swipe controls for volume (swipe up/down), double-tap/long-press etc. Dual device simultaneous Bluetooth connectivity, High-resolution sound with large 14.3 mm drivers, frequency up to ~40 kHz.
materials
colors
connectivity
- bluetooth
- 5.2
- codecs
- SBC, AAC
- latency_ms
- 90
- wired_connector
- USB-C (charging case)
app_support
battery
- capacity
- Earbuds: ~30 mAh each | Case: ~410 mAh
- life
- With ANC off: ~4 hours on earbuds alone; up to ~22 hours combined with case. With ANC on: ~2.5 hours on earbuds; ~14 hours with case
- charging
- Wired USB-C; no wireless charging for the official case (though some versions might support wireless case)
audio
- drivers
- 14.3 mm dynamic drivers
- anc
- Open-fit Active Noise Cancellation 2.0, hybrid dual-mic system, with adaptive ear matching
- technologies
- High-resolution sound to ~40 kHz; improved bass engine; call noise reduction; open sound design for ambient comfort
protection
- ip_rating
- IPX4 (earbuds)
- water_resistance
- Splash-resistant (earbuds only)
tracking
- uwb
- No
- ble
- Yes (part of BT 5.2)
- beeper
- N/A
- replaceable_battery
- No (non-user replaceable)
controls
indicators
- leds
- Charging / status LED on the case (charging / pairing etc.) — standard, though specifics (color) vary
platform_features
ports
- description
- USB-C (for charging case)
standards
warranty
- term
- 1 year limited
sustainability
- materials
- Packaging uses recyclable materials; lighter/lower packaging bulk; case and buds fairly minimal