Key Takeaways
1. Active Noise Cancellation: The Enco Free 4 earbuds feature ANC that reduces noise up to 55dB and cuts down human voice interference by 200%, certified by TÜV Rheinland.
2. Advanced Microphone Technology: Each earbud has three microphones using AI to improve call clarity and can switch between ANC and transparency modes automatically.
3. High-Quality Audio Features: The earbuds include sound tuning by Dynaudio, an 11mm bass driver, a 6mm planar tweeter, and support for Hi-Res Wireless Audio via LHDC 5.0.
4. Smart Capabilities: Features include real-time translation, call summaries, a 400-meter Bluetooth range, and seamless audio switching between OPPO devices.
5. Battery Life and Charging: Battery life varies with usage, offering up to 11 hours without ANC and 5.5 hours with ANC on, with fast charging via USB-C and a companion app for additional controls.
OPPO has unveiled its new Enco Free 4 earbuds in China. These earbuds feature active noise cancellation that goes up to 55dB and can cover a frequency range of 5500Hz. With the ability to detect noise 800 times each second, they can cut down human voice interference by 200%. The ANC has received certification from TÜV Rheinland.
Microphone Technology
Each earbud is fitted with three microphones: a feedforward mic, a feedback mic, and a call mic. These microphones utilize AI technology to enhance voice clarity during calls. They can automatically adjust between ANC and transparency modes based on the surrounding environment, whether it’s a quiet room or a bustling street.
Audio Features
The Star Ceramic Silver edition features sound tuning by Dynaudio. Its audio system includes an 11mm bass driver paired with a 6mm planar tweeter. The earbuds are capable of supporting Hi-Res Wireless Audio via LHDC 5.0 (192kHz, 1Mbps), use dual DACs, and provide spatial audio that is tuned to the ear canal.
Smart Capabilities
Smart functionalities include real-time translation and call summaries that can be activated with a triple-tap. They also support face-to-face interpretation. With Bluetooth 5.4, the earbuds boast a range of 400 meters, functioning well in crowded spaces such as train stations. Additionally, they can switch audio seamlessly between OPPO devices like phones and tablets.
Each earbud is lightweight at 4.7g and is rated IP55, making them resistant to dust and water. They are powered by a 62mAh battery each, while the charging case has a capacity of 530mAh. Battery life varies based on codec and ANC usage:
– AAC Codec:
– ANC off: 11 hours (earbuds), 45 hours (with case)
– ANC on: 6 hours (earbuds), 24 hours (with case)
– LHDC Codec:
– ANC off: 9 hours (earbuds), 37 hours (with case)
– ANC on: 5.5 hours (earbuds), 22 hours (with case)
Charging takes approximately 50 minutes for the earbuds and 80 minutes for the case via USB-C. There is a companion app that offers battery status, ANC controls, spatial audio settings, game mode, dual-device pairing, theme customization, and a find-my-earbud feature.
Pricing and Launch
The Enco Free 4 is currently available for pre-order in China, with sales commencing on April 16, 2025. The pricing is set at 449 yuan for the Star Ceramic Silver version (roughly $61) and 399 yuan for the Water Blue version (about $55).
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