Audio-Technica ATH-CKS50TW2

Name: Audio-Technica ATH-CKS50TW2
Brand: Audio-Technica
SKU: 40545

Manufacturer: Audio-Technica

The Audio-Technica ATH-CKS50TW2 are true wireless in-ear earbuds designed for listeners who want a cord-free experience with reliable everyday durability. Weighing just 14.4 g, they carry an IP55 ingress protection rating, making them resistant to both dust and water splashing from multiple directions. The charging case extends total listening time considerably, and the earbuds support wireless charging alongside USB Type-C for added convenience.

On the technical side, the ATH-CKS50TW2 feature active noise cancellation alongside passive noise isolation, driven by a 9 mm driver unit with a frequency range spanning 5 Hz to 20,000 Hz. Bluetooth 5.3 with LE Audio handles wireless connectivity, and the earbuds support AAC codec transmission within a range of up to 10 m. A four-microphone array with noise-canceling capability handles calls, and the earbuds offer multipoint connectivity for pairing with two devices simultaneously, fast charging, ambient sound mode, and a mute function.

Pros

Supports simultaneous connection to two devices via multipoint pairing, which is practical for switching between a phone and a laptop
IP55 rating provides reliable protection against dust and water splashing, suitable for use during physical activity
The combination of active noise cancellation and passive noise isolation offers two layers of sound blocking
Wireless charging is supported alongside USB Type-C, giving flexibility in how the earbuds are recharged
A four-microphone array with noise-canceling capability helps maintain clearer voice transmission during calls
A travel bag is included in the box, adding convenience for portability without needing to source a case separately

Cons

No support for high-resolution audio codecs such as LDAC, LDHC, aptX HD, or aptX Adaptive, which limits audio quality for users who prioritize lossless or high-bitrate wireless audio
Bluetooth range is capped at 10 m, which may be restrictive in larger spaces
Spatial audio formats including Dolby Atmos and Dirac Virtuo are not supported
Fast pairing and NFC-based pairing are absent, making the initial connection process less convenient
The microphone frequency range tops out at 8,000 Hz, which is relatively narrow and may affect voice clarity in some call environments

Who is this for?

These earbuds are a solid fit for commuters and people who spend significant time in noisy environments, as the combination of active noise cancellation and passive noise isolation works together to cut out ambient sound. The IP55 rating makes them a reasonable choice for those who work out or use earbuds in variable weather conditions where sweat or light rain is a factor. Users who regularly switch between two devices — such as a phone and a laptop — will also find the multipoint pairing for two simultaneous connections genuinely practical, and the 65-hour combined battery life makes them well suited for frequent travelers who need extended listening time between charges.

Who is this NOT for?

Listeners who prioritize high-resolution wireless audio will find the codec support limiting, as LDAC, aptX HD, aptX Adaptive, and similar high-bitrate codecs are all absent, leaving only AAC and LE Audio for wireless transmission. The 10 m Bluetooth range may also prove inadequate for users who frequently move around larger spaces, such as open-plan offices or home environments spread across multiple rooms. Additionally, those who rely on spatial audio formats like Dolby Atmos for immersive listening — particularly when watching films or playing games — will not find that capability here.

Design:

Fit	In-ear
Ingress Protection (IP) rating	IP55
water resistance	Water resistant
weight	14.4 g
has no wires or cables	✓
are neckband earbuds	✕
wingtips included	✕
has RGB lighting	✕
has stereo speakers	✓
has UV light	✕
Has a display	✕

The Audio-Technica ATH-CKS50TW2 use an in-ear fit and operate as true wireless earbuds, meaning there are no cables or neckbands involved. They carry an IP55 rating, confirming resistance to dust ingress and water splashing, which adds a degree of reliability for active use. At just 14.4 g, the earbuds are relatively light and include stereo speakers for left-right audio separation. The design omits wingtips, RGB lighting, a UV light, and any display element, keeping the form factor straightforward and uncluttered.

Sound quality:

has active noise cancellation (ANC)	✓
has passive noise reduction	✓
driver unit size	9 mm
lowest frequency	5 Hz
highest frequency	20000 Hz
supports spatial audio	✕
has Dolby Atmos	✕
has Dirac Virtuo	✕
impedance	20 Ohms
sound pressure level	110 dB/mW
has a neodymium magnet	✕

The ATH-CKS50TW2 include both active noise cancellation and passive noise isolation, giving them two layers of sound-blocking capability. Audio is handled by a 9 mm driver unit with a frequency range of 5 Hz to 20,000 Hz, an impedance of 20 Ohms, and a sound pressure level of 110 dB/mW. Spatial audio, Dolby Atmos, and Dirac Virtuo are not supported, and the driver does not use a neodymium magnet.

Power:

Battery life	25 hours
Battery life of charging case	40 hours
charge time	2.5 hours
has wireless charging	✓
Has a solar power battery	✕
has a battery level indicator	✓
has a rechargeable battery	✓

The ATH-CKS50TW2 offer 25 hours of battery life on a single charge, with the charging case contributing an additional 40 hours for a combined total of 65 hours. A full charge takes 2.5 hours, and the earbuds support wireless charging alongside their rechargeable battery. A battery level indicator is included to keep track of remaining power, while a solar power battery is not part of the design.

Connectivity:

has fast pairing	✕
Has USB Type-C	✓
Bluetooth version	5.3
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 ATH-CKS50TW2 connect wirelessly via Bluetooth 5.3, supporting LE Audio and the AAC codec within a maximum range of 10 m. USB Type-C is available for wired charging. Codec support is otherwise limited — LDAC, LDHC, Auracast, and the full aptX family (including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, and aptX Voice) are all absent. Fast pairing and NFC-based pairing are likewise not supported.

Features:

has ambient sound mode	✓
has find device feature	✓
Supports fast charging	✓
multipoint count	2
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 ATH-CKS50TW2 come with a practical set of features, including ambient sound mode, a find-device function, fast charging, and multipoint connectivity for up to two devices simultaneously. They can be used as a headset for calls, offer a mute function, and provide voice prompts for audio feedback. Controls are handled through an on-device control panel, while an in-line control panel is not included. A travel bag is bundled in the box for portability. Notification readout, a body temperature sensor, and a camera remote shutter function are not part of the feature set.

Microphone:

number of microphones	4
has a noise-canceling microphone	✓
mic sensitivity	-38dBV/Pa
highest mic frequency	8000 Hz
lowest mic frequency	100 Hz

The ATH-CKS50TW2 are equipped with a four-microphone array that includes noise-canceling capability to help reduce unwanted background sound during calls. The microphones have a sensitivity of -38dBV/Pa and cover a frequency range of 100 Hz to 8,000 Hz, which is a typical range for voice pickup and call use.

Final Verdict

The Audio-Technica ATH-CKS50TW2 present a well-rounded set of specifications for everyday wireless earbud use, with a clear focus on noise management, endurance, and practical connectivity. The dual-layer noise blocking through active cancellation and passive isolation, combined with a total battery capacity that stretches well beyond a single day of use, makes them a dependable choice for commuters and frequent travelers. Codec support and Bluetooth range are areas where the specification sheet is more conservative, and users with demanding audio quality requirements or spatial audio preferences will find limitations here. That said, for listeners who want reliable noise attenuation, multipoint device switching, IP55 durability, and extended battery life in a true wireless in-ear form factor, the ATH-CKS50TW2 cover the practical bases competently.