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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-19 · 6 min read · Independent comparison
• ATTACK SHARK G300 — biggest strength: it works both wired and wireless, with a 3.5 mm jack on top of Bluetooth 5.3, so it survives a dead battery and plugs into gear that has no Bluetooth at all.
• ATTACK SHARK G300 — biggest trade-off: its rated battery life is the shorter of the two on paper, so heavy ANC users will charge more often.
• JBUNION Active Noise Cancelling — biggest strength: a hybrid ANC system rated to cut ambient sound by up to 42 dB, plus a transparency mode, five listening modes and a much longer playtime figure.
• JBUNION Active Noise Cancelling — biggest trade-off: it is wireless only. There is no headphone jack, so a dead battery means silence until you charge it.
• Who each pick is for: the G300 suits someone who wants one headphone for gaming, calls and travel with a cable as a safety net; the JBUNION suits long-haul travellers, commuters and office workers who want quiet, awareness modes and fewer charging stops.
The G300 is built around flexibility. Inside it uses dual 40 mm dynamic drivers with a 20 Hz to 20 kHz frequency range, tuned for deep bass and stereo sound — the kind of presentation that works equally well for music, films and game audio. The over-ear cups are wrapped in protein leather over a highly elastic sponge, and the headband is adjustable with 90° inward rotation, so the ear cups can lie flat against your chest or fold into a bag. The enclosure is leather and plastic in black.
Its real differentiator is connectivity. Bluetooth 5.3 covers a stated range of around 33 feet, but there is also a 3.5 mm jack and wired operation. That single detail changes how you use it. If you game on a console or a PC whose audio output is analogue, or if you simply forgot to charge, the G300 keeps working. The built-in microphone handles phone calls, video conferences and online classes, and the ANC is switched through a push-button control rather than a touch panel — easier to find by feel, and it does not misfire when you adjust the cup.
The active noise cancellation is described as reducing external ambient noise by up to 95%, targeting engine roar, subway rumble, office chatter and construction noise. The battery figure is 20 hours, which is the honest weak point here: plenty for a workday or a gaming session, less comfortable for a multi-day trip without a charger.
JBUNION Active Noise Cancelling: Who It's For
The JBUNION is the more feature-dense of the two, and the spec sheet shows it. The headline is a hybrid ANC system that actively analyses and cancels a broad range of ambient sound, rated to reduce distractions by up to 42 dB — a measured decibel claim rather than a percentage, which makes it easier to reason about. Alongside it sits a transparency mode that pipes ambient sound back in, which is what you want for platform announcements, a quick conversation at a desk, or staying alert while walking.
Audio comes from dual 40 mm drivers in a hybrid driver configuration with 32 ohm impedance, tuned for deep bass and crisp highs. There are five listening modes selectable from the ANC button: ANC, Transparency, Music, Bass Boost and Game. That is a lot of tuning flexibility for a single pair of headphones, and the Game and Bass Boost modes are the ones most people will actually reach for.
Two features stand out in daily use. Wear detection uses millimetre-wave sensing to notice skin contact in about 0.3 seconds, pausing automatically when you take the headphones off and resuming when you put them back on — genuinely useful when someone walks up to your desk. And the battery numbers are the strongest part of the whole package: 45 hours with ANC on, 65 hours with ANC off, plus a 15-minute fast charge that yields around 10 hours of playback. A full charge takes about 2 hours.
Comfort is handled by a 200 g (0.5 lb) build with an adjustable headband and memory foam ear cups, and the cups fold and swivel into an included carrying bag. Call quality relies on ENC microphones with noise reduction. Connectivity is Bluetooth 5.4 at a stated range of about 32.8 feet. The finish is beige white in ABS plastic, and there is a 6-month manufacturer warranty.
Buy it if you travel, commute or work in a noisy office and want long battery life, transparency and automatic play/pause. Skip it if you need a cable option — there is no jack here.
• Best for battery life → JBUNION Active Noise Cancelling. 45 hours with ANC on and 65 hours with it off, versus 20 hours on the G300.
• Best for wired use and gaming setups → ATTACK SHARK G300. The 3.5 mm jack means it works with analogue sources and never becomes a paperweight when the battery runs down.
• Best for noise cancellation detail → JBUNION Active Noise Cancelling. A hybrid system with a stated reduction of up to 42 dB gives you a concrete figure to compare against.
• Best for staying aware of your surroundings → JBUNION Active Noise Cancelling. Transparency mode is the feature the G300 does not list.
• Best for quick top-ups → JBUNION Active Noise Cancelling. A 15-minute charge is stated to deliver around 10 hours of playback.
• Best for hands-free convenience → JBUNION Active Noise Cancelling. Wear detection pauses and resumes automatically; the G300 relies on manual button control.
• Best for a simpler, more familiar fit → ATTACK SHARK G300. Push-button ANC, adjustable headband and 90° rotating cups in a classic black over-ear shape.
• Best for travelling light → JBUNION Active Noise Cancelling. At 200 g with folding cups and a carry bag, it is the more packable of the two.
For most people, I would buy the JBUNION Active Noise Cancelling. In my opinion the combination of 45-hour ANC playtime, transparency mode, wear detection and five listening modes covers more real-life situations than anything else in this comparison — and the fast-charge figure makes the one weakness of wireless-only design much easier to live with. The G300 is the better answer for one specific buyer: someone who games on analogue audio or wants a cable as insurance, and who is fine charging more often. If you are that person, the G300 is the smarter pick. Otherwise, check the current price on Amazon and go with the JBUNION.
The JBUNION. It is rated for up to 45 hours with ANC on and 65 hours with ANC off, while the G300 lists 20 hours. The JBUNION also supports a 15-minute fast charge for roughly 10 hours of playback.
Yes. The G300 has a 3.5 mm headphone jack and supports both wired and wireless connections. The JBUNION is wireless only — there is no jack, so it needs charge to play.
I would lean JBUNION for travel: hybrid ANC rated up to 42 dB, transparency mode for announcements, 200 g weight, folding cups and a carrying bag. The G300 still works well for commuting, and its wired mode is handy on planes with seatback audio.
Only the JBUNION lists one, as part of its five selectable listening modes. The G300 lists active noise cancellation with push-button control but no transparency mode.
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