Tag: Hi-Res Wireless Audio

  • CMF Buds 2 Plus: LDAC, Hi-Res Audio & 60+ Hour Battery Life

    CMF Buds 2 Plus: LDAC, Hi-Res Audio & 60+ Hour Battery Life

    Key Takeaways

    1. The CMF Buds 2 Plus features a stem design and clamshell charging case, positioned between CMF Buds Pro 2 and Buds 2 in the product lineup.
    2. They are available in Blue and Light Grey, with an IP55 rating for dust and water resistance, and include advanced microphone technology for clear calls.
    3. Equipped with 50dB hybrid active noise cancellation (ANC) and a smart adaptive mode, the earbuds adjust noise cancellation based on the environment.
    4. Each earbud has a 12mm LCP driver for studio-quality audio, supports LDAC, and features a personalized audio profile test powered by Audiodo.
    5. The battery life lasts 14 hours on a single charge (ANC off), up to 61.5 hours with the case, and will be priced at €59.95 upon launch on May 5.


    The CMF Buds 2 Plus is one of the two new earbuds introduced alongside the CMF Phone 2 Pro. It sits in the product lineup just below the CMF Buds Pro 2, but above the CMF Buds 2 and CMF Buds 2a. Similar to its siblings, the Buds 2 Plus features a stem design and comes with the same clamshell-style charging case that has a dial on top.

    Color Options and Durability

    Offered in Blue and Light Grey, the CMF Buds 2 Plus are rated IP55, which means they’re resistant to dust and water. They also boast six HD microphones equipped with Clear Voice Technology 3.0 and Wind Noise Reduction 3.0, mirroring the features found in the Buds Pro 2 and Buds 2. This technology ensures clear calls even in breezy conditions. Furthermore, the Buds 2 Plus earbuds include 50dB hybrid active noise cancellation (ANC), which has a smart adaptive mode that adjusts the noise cancellation level automatically depending on the surrounding noise.

    Sound Quality and Features

    According to CMF, each earbud is fitted with a 12mm LCP driver that uses N52 magnets and high-purity copper, delivering studio-quality audio. The Buds 2 Plus also support LDAC and come with a Hi-Res Wireless Audio certification. Additionally, there’s a unique audio feature powered by Audiodo, which enables users to craft a personalized audio profile after completing an auditory test. The earbuds further support spatial audio and have a low-latency mode for gaming, achieving 105ms when linked to a Nothing OS smartphone.

    Battery Life and Pricing

    The battery life of the CMF Buds 2 Plus lasts for 14 hours on a single charge when ANC is turned off, and they can provide a total of 61.5 hours with the charging case. A quick 10-minute charge can offer up to 8.5 hours of listening time (with the case). Set to launch on May 5, they will be priced at €59.95. They are also expected to be sold in the US, similar to the Buds 2 and Buds Pro 2, which are currently available on Amazon for $59.

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  • OPPO Enco Free 4: Hi-Res Audio, 55dB ANC, AI Translation, Battery Life

    OPPO Enco Free 4: Hi-Res Audio, 55dB ANC, AI Translation, Battery Life

    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).