OPPO Enco Free4 True Wireless Earbuds: Product Details

Features

1. Advanced Noise Cancellation

   • 55dB Ultra-Deep Noise Cancellation (ANC):
     Equipped with a human voice-focused ANC system, it achieves 55dB noise reduction depth and covers a wide frequency range of up to 5500Hz. Specifically optimized for 50–3000Hz human voice frequencies, it outperforms competitors like AirPods Pro 2 and delivers 200% improvement over the previous generation (Enco Free3) in voice noise suppression.

   • Smart Adaptive Mode:
     Automatically adjusts ANC intensity based on environments (e.g., streets, subways, offices) and seamlessly switches between noise cancellation and transparency modes for safety and comfort.

2. Hi-Res Audio with Dynaudio Tuning

   • Dual-Driver Acoustic System:
     Features an 11mm composite diaphragm bass driver + 6mm planar diaphragm treble driver in a coaxial design, covering 15–40KHz frequency response for studio-grade sound quality.

   • Dynaudio-Coordinated Tuning (Dynaudio Edition):
     Collaboratively tuned with Danish audio brand Dynaudio, the "Dynaudio Edition" emphasizes rich mid-range vocals and balanced low/high frequencies, ideal for pop, vocals, and instrumental music.

   • Hi-Res Audio Wireless Certified:
     Supports LHDC 5.0 codec for 24-bit/192kHz high-resolution audio transmission (up to 1Mbps bitrate).

3. AI-Powered Smart Features

   • Real-Time AI Translation:
     Supports 21 languages for face-to-face translation and simultaneous interpretation via the "HeyMelody" app.

   • Multi-Device Connectivity:
     Seamlessly pairs with two devices simultaneously (Android, iOS, Windows) and offers ultra-low latency (47ms) for gaming.

4. Long-Lasting Comfort & Durability

   • 45-Hour Total Playback:
     Up to 11 hours on a single charge (with ANC on) and 45 hours with the charging case. Supports fast charging (10 minutes = 3.5 hours of playback).

   • Lightweight Design:
     Weighs only 4.7g per earbud, IP55 dust/water resistance, and ergonomic fit for all-day comfort.

5. Customizable Listening Experience

   • EQ Presets & Spatial Audio:
     Offers "Pure Original Sound," "Vocal Boost," and "Bass Enhancement" presets. Features "Golden Sound" personalized hearing profiles and 360° spatial audio for immersive theater-like experiences.

Technical Specifications

• Drivers:11mm + 6mm coaxial dual drivers

• Bluetooth:5.4 with proprietary "Agile Bluetooth" protocol (stable up to 400m in open areas).

• Codec Support:LHDC 5.0, AAC, SBC

• Microphones:Triple-mic array with AI call noise reduction and wind noise suppression.

• Colors:Water Blue (Standard), Starry Silver (Dynaudio Edition with exclusive branding)