Description
OnePlus Buds 4
Lightweight true wireless earbuds with dual-driver sound, real-time adaptive active noise cancellation, and touch controls for music, calls, and volume. Bluetooth connectivity supports quick pairing, Google Fast Pair, and dual-device connection, with an optional low-latency mode for video and games.
Audio
- 11 mm woofer + 6 mm tweeter drivers
- Frequency response 15 Hz–40 kHz; driver sensitivity 118±1.3 dB @ 1 mW
- Sound pressure 96.5 dB; impedance 18 Ω ± 15% / 10 Ω ± 15%
- Codecs: LHDC 5.0, AAC, SBC
Noise cancellation and microphones
Real-Time Adaptive Active Noise Cancellation with up to 55 dB reduction across frequencies up to 5,500 Hz. Modes: ANC on, Adaptive Mode, Transparency Mode, ANC off. Three microphones per side with 3-mic AI call noise cancellation; microphone sensitivity −38±1 dB.
Connectivity
Bluetooth 5.4 with Steady Connect; effective range about 10 m; profiles HFP/A2DP/AVRCP.
Battery and charging
Earbud battery 62 mAh; charging case 530 mAh. Playback times at 50% volume:
| Condition | Earbuds | Earbuds + case |
|---|---|---|
| ANC off, AAC | 11 h | 45 h |
| ANC on, AAC | 6 h | 24 h |
| ANC off, LHDC | 9 h | 37 h |
| ANC on, LHDC | 5.5 h | 22 h |
| Talk, ANC off, HFP | 6 h | 24 h |
| Talk, ANC on, HFP | 4 h | 17 h |
Physical
| Earbud dimensions | 31 × 20.6 × 24.2 mm; 4.73 ± 0.2 g each |
| Case dimensions | 65.4 × 52.4 × 25.3 mm; 39.57 ± 1 g |
| Total weight | 49.02 ± 1 g |
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