QCY Crossky C30S

Manufacturer: QCY

The QCY Crossky C30S are true wireless earbuds designed with an open-ear fit, making them a practical choice for those who prefer situational awareness during use. Weighing just 10 g per earbud, they carry an IPX5 water resistance rating, offering protection against sweat and light moisture. The earbuds come with a travel bag and support multipoint connectivity, allowing simultaneous pairing with two devices at once.

On the technical side, the C30S use a 10.8 mm driver unit and cover a frequency range of 20 Hz to 20,000 Hz, with spatial audio support also included. Bluetooth 6 handles wireless connectivity alongside LDAC and AAC codec support, while the maximum wireless range reaches 10 m. Battery life runs to 6 hours per charge, with the USB-C charging case extending total playback to 34 hours; fast charging is supported. A quad-microphone setup with noise-canceling capability enables headset use, and a mute function is available directly through the on-device control panel.

Pros

Bluetooth 6 with LDAC support enables high-quality wireless audio transmission
Multipoint connectivity allows simultaneous pairing with two devices
Fast charging supported, reducing downtime between uses
Four-microphone array with noise cancellation improves call clarity
A travel bag is included, adding convenience for portability
Total battery life reaches 40 hours when combining earbuds and charging case

Cons

No active noise cancellation or passive noise isolation, which limits use in loud environments
Open-ear fit offers no sound sealing, affecting audio immersion
Wireless charging is not supported
No in-ear detection means music does not pause automatically when earbuds are removed
Bluetooth range is limited to 10 m
No ambient sound mode available

Who is this for?

The QCY Crossky C30S are well-suited to users who need to stay aware of their surroundings while listening, making them a practical fit for outdoor activities such as running or cycling. The IPX5 water resistance and lightweight 10 g build add to their appeal for active daily use. Those who frequently switch between two devices will benefit from the multipoint connectivity, and the four-microphone noise-canceling setup makes them a reasonable option for users who regularly take calls on the go. The included travel bag and fast charging support further suit someone with a mobile, on-the-move lifestyle.

Who is this NOT for?

Users who prioritize deep sound immersion or work in consistently noisy environments will find this product limiting, as it offers no active noise cancellation and no passive noise isolation. The open-ear design inherently allows ambient sound to interfere with audio, making it a poor match for focused listening in busy or loud settings. Audiophiles or users who rely on aptX-based codecs for low-latency or high-resolution wireless audio will also be underserved, as the full aptX family is absent. Additionally, those who prefer to charge their accessories wirelessly will find the lack of wireless charging support a recurring inconvenience.

Design:

Fit	Open-ear
Ingress Protection (IP) rating	IPX5
water resistance	Water resistant
weight	10 g
has no wires or cables	✓
are neckband earbuds	✕
wingtips included	✕
has RGB lighting	✕
has stereo speakers	✓
has UV light	✕
Has a display	✕

The QCY Crossky C30S adopt an open-ear fit and a fully true wireless design, meaning no cables or neckband are involved. Each earbud weighs just 10 g and features stereo speakers, while wingtips and RGB lighting are not included, keeping the form factor straightforward. For durability, the earbuds carry an IPX5 rating, confirming water resistance against splashes and sweat. There is no display, UV light, or any additional hardware elements beyond the core driver and control setup.

Sound quality:

has active noise cancellation (ANC)	✕
has passive noise reduction	✕
driver unit size	10.8 mm
lowest frequency	20 Hz
highest frequency	20000 Hz
supports spatial audio	✓
has Dolby Atmos	✕
has Dirac Virtuo	✕
has a neodymium magnet	✕

The QCY Crossky C30S use a 10.8 mm driver unit and cover a frequency range of 20 Hz to 20,000 Hz. Spatial audio is supported, adding a positional dimension to playback, though Dolby Atmos and Dirac Virtuo are not available. The earbuds do not include a neodymium magnet, and neither active noise cancellation nor passive noise reduction is present, which is consistent with their open-ear design.

Power:

Battery life	6 hours
Battery life of charging case	34 hours
charge time	2 hours
battery power	32 mAh
battery power (charging case)	460mAh
has wireless charging	✕
Has a solar power battery	✕
has a battery level indicator	✓
has a rechargeable battery	✓

Each earbud holds a 32 mAh rechargeable battery delivering up to 6 hours of playback, while the 460 mAh charging case extends total battery life to 34 hours. A full charge takes 2 hours, and a battery level indicator is included to keep track of remaining power. Wireless charging and solar power 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 QCY Crossky C30S connect wirelessly via Bluetooth 6, with a maximum range of 10 m. Supported audio codecs include LDAC and AAC, while the full aptX family — including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, and aptX Voice — is not available. Bluetooth LE Audio and Auracast are also absent. Charging is handled through USB Type-C, and neither fast pairing nor NFC pairing is supported.

Features:

has ambient sound mode	✕
has in/on-ear detection	✕
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	✓
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 QCY Crossky C30S support multipoint connectivity for up to two devices simultaneously and can be used as a headset, with voice prompts and a mute function available during calls. Fast charging is supported, and controls are handled through an on-device panel; there is no in-line control panel. A travel bag is included in the package. The earbuds do not offer ambient sound mode, in-ear detection, notification reading, a built-in translator, a temperature sensor, or a camera remote shutter function.

Microphone:

number of microphones	4
has a noise-canceling microphone	✓

The QCY Crossky C30S feature a quad-microphone setup with noise-canceling capability, aimed at reducing unwanted background sound during calls and voice use.

Final Verdict

The QCY Crossky C30S is a true wireless open-ear earbud built around practicality and connectivity. Its Bluetooth 6 with LDAC support, combined with multipoint pairing and a robust quad-microphone setup, positions it well for users who prioritize call clarity and device flexibility over immersive audio isolation. The IPX5 rating and lightweight form factor make it a dependable companion for active daily use, while the 40-hour total battery life and fast charging keep interruptions to a minimum. Those seeking deep noise isolation or a broader codec ecosystem will find its scope limited, but for users who value situational awareness, reliable hands-free communication, and seamless multi-device switching, the Crossky C30S delivers a coherent and purposeful set of features.