OnePlus Buds Ace 2

Name: OnePlus Buds Ace 2
Brand: OnePlus
SKU: 3424

Manufacturer: OnePlus

The OnePlus Buds Ace 2 are true wireless earbuds built around a compact in-ear design that weighs just 8.4 g per earbud. Rated IP55 for water and dust resistance, they hold up well in everyday conditions, and the included charging case extends total listening time to 43 hours combined. A travel bag is included in the box, and touch controls on each earbud give direct access to playback and settings without reaching for a phone.

Sound is handled by a 12.4 mm driver unit covering a frequency range of 20 Hz to 20,000 Hz, and active noise cancellation works alongside passive noise isolation to reduce unwanted ambient sound. An ambient sound mode can be toggled when situational awareness is needed. Connectivity runs over Bluetooth 5.4 with a stated maximum range of 10 m and an audio latency of 47 ms. The earbuds charge via USB Type-C, and fast charging is supported, bringing a full charge in around 1.5 hours. A noise-canceling microphone enables headset use, and a find-device feature is available through the companion app.

Pros

Active noise cancellation combined with passive noise isolation provides two layers of ambient sound reduction
IP55 rating offers resistance to both water and dust, making the earbuds suitable for use in varied conditions
The charging case extends total battery availability to 43 hours, reducing how often the setup needs to be recharged
Fast charging support helps restore battery faster when time is limited
A find device feature makes it easier to locate misplaced earbuds
Ambient sound mode allows users to let in surrounding audio without removing the earbuds

Cons

No wireless charging support for the case, requiring a cable to recharge
Bluetooth range is limited to 10 m, which restricts movement away from the source device
No in-ear detection means music does not automatically pause when an earbud is removed
NFC pairing and fast pairing are both absent, making the initial connection process more manual
No support for high-resolution audio codecs such as LDAC, aptX HD, or aptX Adaptive
Notification readout is not available, limiting hands-free awareness of incoming alerts

Who is this for?

These earbuds are a solid fit for users who commute, work in open offices, or spend time in noisy environments, thanks to the combination of active noise cancellation and passive noise isolation that helps block out ambient sound. The IP55 rating makes them practical for workouts or outdoor use where light rain or sweat exposure is likely. With 43 hours of total battery availability and fast charging support, they also suit users who need a reliable all-day listening option without frequent interruptions to recharge. The included mute function and noise-canceling microphone make them a functional choice for people who regularly take calls or join voice sessions throughout the day.

Who is this NOT for?

Users who prioritize high-resolution audio streaming will find the lack of LDAC, aptX HD, or aptX Adaptive a notable limitation, as the earbuds do not support any advanced audio codec beyond the standard Bluetooth connection. The 10 m Bluetooth range makes them poorly suited for situations where the source device needs to be left further away, such as in a home gym or across a room. Additionally, listeners who expect automatic playback management will be disappointed, as there is no in-ear detection to pause audio when an earbud is removed — making them less convenient for users who frequently switch between wearing and not wearing them.

Design:

Fit	In-ear
Ingress Protection (IP) rating	IP55
water resistance	Water resistant
weight	8.4 g
has no wires or cables	✓
are neckband earbuds	✕
wingtips included	✕
has RGB lighting	✕
has stereo speakers	✓
has UV light	✕
Has a display	✕

The OnePlus Buds Ace 2 adopt an in-ear fit and a true wireless design with no cables or neckband, keeping each earbud light at just 8.4 g. They carry an IP55 rating, meaning they offer resistance to both water and dust ingress, making them suitable for use in varied everyday conditions. Each earbud houses a stereo speaker configuration, while features such as RGB lighting, wingtips, a display, and UV light are not included in the design.

Sound quality:

has active noise cancellation (ANC)	✓
has passive noise reduction	✓
driver unit size	12.4 mm
lowest frequency	20 Hz
highest frequency	20000 Hz
supports spatial audio	✓
has Dolby Atmos	✕
has Dirac Virtuo	✕
has a neodymium magnet	✕

The OnePlus Buds Ace 2 use a 12.4 mm driver unit and cover a frequency range of 20 Hz to 20,000 Hz. Both active noise cancellation and passive noise reduction are supported, working together to reduce ambient sound during use. Spatial audio is also available, adding a wider sense of soundstage to compatible content. Dolby Atmos, Dirac Virtuo, and a neodymium magnet are not part of the audio hardware configuration.

Power:

Battery life	11 hours
Battery life of charging case	32 hours
charge time	1.5 hours
battery power	58 mAh
battery power (charging case)	440mAh
has wireless charging	✕
Has a solar power battery	✕
has a battery level indicator	✓
has a rechargeable battery	✓

Each earbud holds a 58 mAh rechargeable battery delivering up to 11 hours of playback on a single charge, while the 440 mAh charging case adds a further 32 hours, bringing total available listening time to 43 hours. A full charge takes 1.5 hours, and fast charging is not mentioned in the available data, though the case connects via cable rather than wirelessly, as wireless charging is not supported. A battery level indicator is present, allowing users to check remaining charge at a glance. Solar charging is not featured.

Connectivity:

has fast pairing	✕
Has USB Type-C	✓
Bluetooth version	5.4
has LDAC	✕
has LDHC	✕
has Bluetooth LE Audio	✕
has aptX Adaptive	✕
has aptX Low Latency	✕
has aptX HD	✕
has aptX	✕
has aptX Lossless	✕
audio latency	47 ms
has aptX Voice	✕
has Auracast	✕
maximum Bluetooth range	10 m
supports Bluetooth pairing using NFC	✕
Can be used wirelessly	✓
has AAC	✕

The OnePlus Buds Ace 2 connect wirelessly via Bluetooth 5.4 with a maximum range of 10 m and an audio latency of 47 ms. The charging case uses USB Type-C for wired charging, though NFC pairing and fast pairing are not supported. On the codec side, the earbuds do not include LDAC, LDHC, AAC, Auracast, Bluetooth LE Audio, or any variant of aptX — including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, or aptX Voice.

Features:

has ambient sound mode	✓
has in/on-ear detection	✕
has find device feature	✓
Supports fast charging	✓
can read notifications	✕
has a mute function	✓
can be used as a headset	✓
control panel placed on a device	✓
Has voice prompts	✓
travel bag is included	✓
Has an in-line control panel	✕
Has a temperature sensor	✕
Has a built-in camera remote control function	✕

The OnePlus Buds Ace 2 include a practical set of features for daily use, starting with ambient sound mode for situational awareness and a mute function for quick microphone silencing during calls. Fast charging is supported, and a find device feature helps locate misplaced earbuds. The earbuds can function as a headset and offer voice prompts for audio feedback, while a control panel on the device provides convenient playback and settings management. A travel bag is included in the box. In-ear detection, notification readout, an in-line control panel, a body temperature sensor, and a camera remote shutter function are not available.

Microphone:

has a noise-canceling microphone	✓

The OnePlus Buds Ace 2 are equipped with a noise-canceling microphone, which works to reduce background noise during calls and voice input for clearer communication in louder environments.

Final Verdict

The OnePlus Buds Ace 2 present a well-rounded set of specifications for users seeking a dependable pair of wireless earbuds for everyday use. The combination of active noise cancellation, IP55-rated durability, and 43 hours of total battery life gives the earbuds a practical edge in commuting, work, and fitness scenarios. The absence of advanced audio codecs and the modest 10 m Bluetooth range do place some boundaries on the experience, particularly for listeners with higher audio quality expectations. That said, for users whose priorities center on reliable noise management, all-day battery availability, and a cable-free design that holds up in varied conditions, the OnePlus Buds Ace 2 deliver a focused and functional package that fits comfortably within its category.