OpenRock S2

Name: OpenRock S2
Brand: OpenRock
SKU: 3796

Manufacturer: OpenRock

The OpenRock S2 are open-ear true wireless earbuds designed for listeners who prefer an unobstructed fit. Weighing just 14 g, they sit comfortably with wingtip support and deliver stereo sound through 12 mm drivers across a standard 20 Hz to 20,000 Hz frequency range. Spatial audio is also supported, and the earbuds come with a travel bag included.

On the connectivity side, the OpenRock S2 run on Bluetooth 6 with LDAC and AAC codec support, alongside USB Type-C charging and multipoint pairing for up to two devices simultaneously. Battery life reaches 8 hours per charge, with the case extending total use to 24 hours, and fast charging is available with a 1.5-hour full charge time. A 4-microphone setup with noise cancellation handles calls, and the IPX5-rated build offers reliable water resistance for everyday use.

Pros

Bluetooth 6 with LDAC support enables high-quality wireless audio transmission
Multipoint connectivity allows simultaneous pairing with two devices
4-microphone array with noise cancellation supports clearer call quality
Fast charging available with a full charge completed in 1.5 hours
Charging case extends total playback to 24 hours, well beyond the earbuds alone
Travel bag included adds practical portability out of the box

Cons

Open-ear design provides no passive noise isolation, making it unsuitable for noisy environments
No active noise cancellation available
Wireless charging is not supported, requiring a cable for every charge session
Bluetooth range is limited to 10 m
No in/on-ear detection means music does not pause automatically when the earbuds are removed

Who is this for?

The OpenRock S2 are well-suited to users who prioritize situational awareness during daily activities such as commuting, working at a desk, or light outdoor exercise, since the open-ear design lets ambient sound through naturally. Those who frequently switch between devices will benefit from multipoint pairing across two connections, and the 24-hour combined battery life makes them a reliable choice for long days without frequent top-ups. The IPX5 water resistance and wingtip fit also make them a reasonable option for light workouts or casual outdoor use.

Who is this NOT for?

Users who need to block out environmental noise — such as in busy offices, public transport, or loud workspaces — will find the open-ear design a significant drawback, as there is neither active noise cancellation nor passive noise isolation. Audiophiles or users invested in the aptX codec ecosystem will also be disappointed, since no aptX variants are supported. Additionally, those who prefer a fully cable-free charging experience will find the lack of wireless charging a limitation, and the 10 m Bluetooth range may prove restrictive in situations requiring greater distance from the source device.

Design:

Fit	Open-ear
Ingress Protection (IP) rating	IPX5
water resistance	Water resistant
weight	14 g
has no wires or cables	✓
are neckband earbuds	✕
wingtips included	✓
has RGB lighting	✕
has stereo speakers	✓
has UV light	✕
Has a display	✕

The OpenRock S2 feature an open-ear fit with wingtips included for added stability during wear, and the true wireless design means there are no cables or neckband to contend with. At just 14 g, the earbuds are notably light, and stereo speakers are built in for a two-channel listening experience. They carry an IPX5 rating, making them water resistant against splashes and sweat, though they do not include RGB lighting, a UV light, or any display.

Sound quality:

has active noise cancellation (ANC)	✕
has passive noise reduction	✕
driver unit size	12 mm
lowest frequency	20 Hz
highest frequency	20000 Hz
supports spatial audio	✓
has Dolby Atmos	✕
has Dirac Virtuo	✕
has a neodymium magnet	✕

The OpenRock S2 use 12 mm drivers and cover a frequency range of 20 Hz to 20,000 Hz, spanning the full standard audible spectrum. Spatial audio is supported, adding a sense of dimensional depth to playback. The earbuds do not include active noise cancellation or passive noise isolation, and there is no Dolby Atmos, Dirac Virtuo, or neodymium magnet technology on board.

Power:

Battery life	8 hours
Battery life of charging case	24 hours
charge time	1.5 hours
has wireless charging	✕
Has a solar power battery	✕
has a battery level indicator	✓
has a rechargeable battery	✓

The OpenRock S2 offer 8 hours of battery life per charge, with the included charging case extending the total to 24 hours. A full charge takes 1.5 hours, and a battery level indicator lets you keep track of remaining power. The battery is rechargeable, though wireless charging and solar charging are not supported.

Connectivity:

has fast pairing	✕
Has USB Type-C	✓
Bluetooth version	6
has LDAC	✓
has LDHC	✕
has Bluetooth LE Audio	✕
has aptX Adaptive	✕
has aptX Low Latency	✕
has aptX HD	✕
has aptX	✕
has aptX Lossless	✕
has aptX Voice	✕
has Auracast	✕
maximum Bluetooth range	10 m
supports Bluetooth pairing using NFC	✕
Can be used wirelessly	✓
has AAC	✓

The OpenRock S2 connect wirelessly via Bluetooth 6 with a maximum range of 10 m, and support both LDAC and AAC codecs for audio transmission. Charging is handled through a USB Type-C port. The earbuds do not support fast pairing, NFC pairing, Auracast, or Bluetooth LE Audio, and none of the aptX codec variants — including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, or aptX Voice — are available. LDHC is likewise not supported.

Features:

has ambient sound mode	✕
has in/on-ear detection	✕
has find device feature	✓
Supports fast charging	✓
multipoint count	2
can read notifications	✕
Has a built-in translator	✕
has a mute function	✓
can be used as a headset	✓
control panel placed on a device	✓
warranty period	2 years
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 OpenRock S2 support multipoint connectivity for up to two devices simultaneously and can be used as a headset, with a mute function and voice prompts included. A control panel is placed on the device itself, though there is no in-line control panel. Fast charging is supported, and a find device feature helps locate misplaced earbuds. A travel bag is included in the box, and the earbuds come with a 2-year warranty. Features not present include ambient sound mode, in/on-ear detection, notification reading, a built-in translator, a body temperature sensor, and a camera remote shutter function.

Microphone:

number of microphones	4
has a noise-canceling microphone	✓

The OpenRock S2 are equipped with a 4-microphone setup that includes noise cancellation, helping to reduce unwanted background sound during calls and voice use.

Final Verdict

The OpenRock S2 make a clear case for users who want a cable-free listening experience without sacrificing environmental awareness. With Bluetooth 6 and LDAC support paired with a capable 4-microphone noise-canceling setup, the earbuds cover both audio quality and call performance on solid technical footing. The 24-hour combined battery life and fast charging further reinforce their practical, all-day usability. That said, the open-ear design and absence of any noise isolation or cancellation define a specific kind of listener they serve best — one who values staying connected to their surroundings. For that audience, the OpenRock S2 deliver a well-rounded, feature-complete package; for those needing focused listening in demanding acoustic environments, the fit may fall short of expectations.