Details International stock, 1-2 days fast dispatch. Estimated Delivery Time Frame: 5-7 Business days One Year Australian Seller Warranty. Due to health and hygiene reasons, headphones and some wearables can only be returned for a full refund if they are unopened within 30 days of purchase and are completely sealed or faulty. For this reason, if you change your mind about your purchase of headphones or wearable product they must be completely unopened. The OnePlus Buds 4 (E513A) push the limits of premium sound and intelligent connectivity, designed for listeners who demand immersive audio and reliable performance. Equipped with a dual-driver setup a powerful 11 mm woofer paired with a refined 6 mm tweeter these earbuds deliver a wide, detailed soundstage from deep lows to crystal-clear highs, covering frequencies from 15 Hz to 40 kHz. Real-time adaptive active noise cancellation intelligently adjusts to your surroundings, blocking up to 55 dB of ambient noise while maintaining natural-sounding transparency when needed. Whether you’re enjoying Hi-Res tracks with the LHDC 5.0 codec or attending a call in a busy cafe three high-sensitivity microphones per side and an AI noise suppression system ensure your voice sounds crisp and confident in every conversation. Engineered for nonstop performance, the Buds 4 last up to 45 hours with the compact charging case, while Warp Fast Charging delivers 3.5 hours of playback in just 10 minutes. The ergonomic design lightweight at only 4.73 g per earbud combines comfort with IP55-rated dust and water resistance. Supported by Bluetooth 5.4 with Steady Connect, Google Fast Pair, HeyMelody app controls, and dual-device pairing, the experience is seamless across devices. Plus, OnePlus’s exclusive 3D Audio, Sound Master EQ, and Golden Sound personalization bring studio-grade immersion to every beat. Smart, durable, and brilliantly tuned—OnePlus Buds 4 redefine what wireless sound can do. Specs Model OnePlus Buds 4 (E513A) Design In-Ear, True Wireless Earbuds Dimensions Earphone: 31 × 20.6 × 24.2 mm | Charging Case: 65.4 × 52.4 × 25.3 mm Weight Earphone: 4.73 ± 0.2 g | Case: 39.57 ± 1 g | Total: 49.02 ± 1 g Driver 11 mm Woofer + 6 mm Tweeter (Dual Driver Setup) Frequency Response 15 Hz – 40 kHz Driver Sensitivity 118 ± 1.3 dB @ 1 mW Microphone Sensitivity –38 ± 1 dB Microphones 3 per earbud (6 total) Impedance 18 O ± 15% / 10 O ± 15% Sound Pressure 96.5 dB Rated Power 10 mW Noise Cancelling Real-time Adaptive ANC (up to 55 dB) | Modes: ANC On / Adaptive / Transparent / Off Call Noise Reduction 3-Microphone AI Call Noise Cancellation Bluetooth Version Bluetooth 5.4 with Steady Connect Bluetooth Codec LHDC 5.0 / AAC / SBC Transmission Protocols HFP / A2DP / AVRCP Effective Distance 10 m Connectivity Features Google Fast Pair | Dual Device Connection Battery Capacity Earphone: 62 mAh | Case: 530 mAh Playback Time (ANC Off, AAC) Earbuds: 11 h | With Case: 45 h Playback Time (ANC On, AAC) Earbuds: 6 h | With Case: 24 h Playback Time (LHDC, ANC Off) Earbuds: 9 h | With Case: 37 h Playback Time (LHDC, ANC On) Earbuds: 5.5 h | With Case: 22 h Talk Time (ANC Off) Earbuds: 6 h | With Case: 24 h Talk Time (ANC On) Earbuds: 4 h | With Case: 17 h Fast Charging 10 min charge = 3.5 h playback (earbuds) | 11 h total with case Charging Time Earbuds: ˜ 50 min | With Case: ˜ 80 min Charging Connector USB Type-C (Wired) Special Features OTA Updates, IP55 Dust & Water Resistance, OnePlus 3D Audio, Sound Master EQ, Golden Sound, AI Translation, 47 ms Low Latency, HeyMelody App Support, Voice Assistant Hotkey, Double-Tap Camera Control, Find My Headset Hybrid 11 mm woofer + 6 mm tweeter for Hi-Res sound Adaptive Active Noise Cancellation up to 55 dB Up to 45 hours of battery life with warp fast charging Bluetooth 5.4 with LHDC 5.0 and dual-device connectivity IP55 water & dust resistance with HeyMelody app support
