OPPO Enco Free4 Launched with Up to 55dB ANC and AI Smart Features

Audio & ANC Features – Up to 55dB Active Noise Cancellation (ANC) – Adaptive ANC/transparency modes based on environment – TÜV Rheinland certified for noise suppression – 3 mics per earbud with AI noise isolation for clear calls – LHDC 5.0 support with Hi-Res Wireless Audio – Coaxial dual-driver: 11mm bass + 6mm tweeter

Smart & AI Features – Real-time language interpretation – AI call summaries with triple-tap – Face-to-face translation support – Gesture controls and seamless audio switching

Connectivity, Battery & Build – Bluetooth 5.4 with 400m range, 100m² indoor coverage – IP55 water and dust resistance – 4.7g lightweight ergonomic earbuds Battery Life (AAC): – Up to 11h (buds), 45h with case (ANC off) – Up to 6h (buds), 24h with case (ANC on) Battery Life (LHDC): – Up to 9h (buds), 37h with case (ANC off) – Up to 5.5h (buds), 22h with case (ANC on)

Pricing & Availability – Pre-orders open in China – Sales start April 16, 2025 – Star Ceramic Silver (Dynaudio Edition): ¥449 (~$61 / ₹5,290) – Water Blue variant: ¥399 (~$54 / ₹4,700)