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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a headphone built to double as a wired, low-latency monitoring tool for DJ work and studio-style listening, choose AKG N9; if you need long ANC-on battery life, punchy tuning controls and a lighter on-ear fit for everyday wireless listening, choose CMF BY NOTHING Headphone Pro Active. Both are 40mm over-ear designs with active noise cancellation, and both can plug in with a cable — but they solve different problems. If you're shopping for the best headphones for DJ use, the deciding factor usually comes down to how you connect and how the sound is tuned, not how stylish the case looks.
• AKG N9 — biggest strength: A 2.4GHz USB-C dongle stored in the earcup for instant, low-latency wireless to almost any device, plus a 3.5mm jack and a 100-hour battery figure.
• AKG N9 — biggest trade-off: Heavier emphasis on call/meeting features (Zoom-certified, beamforming mics) than on casual lifestyle extras like color options or a bass slider.
• CMF BY NOTHING Headphone Pro Active — biggest strength: Up to 50 hours of playtime with ANC on, 40dB adaptive cancellation, Hi-Res LDAC, and a bass/treble slider with custom EQ.
• CMF BY NOTHING Headphone Pro Active — biggest trade-off: No USB dongle, so wireless latency depends on Bluetooth 5.4 (rated 120ms) rather than a dedicated low-latency link.
• Who each is for: AKG N9 suits DJs, producers and hybrid workers who need a hardwired or dongle option; CMF BY NOTHING Headphone Pro Active suits commuters, students and casual listeners who want long battery and tunable sound.
The AKG N9 is a hybrid headphone in the truest sense. Its headline trick is a smart USB-C dongle that lives inside the earcup — pull it out, plug it into a laptop, controller or phone, and you get an instant wireless link without pairing menus. A USB-A adapter is included too, which matters if you're plugging into older gear. There's also a standard 3.5mm jack and a cable in the box, so you can go fully wired when latency has to be zero. For anyone hunting the best hifi stereo earphones for DJ work, that combination of a wired path plus a dedicated dongle is the practical part of the spec sheet.
Where it clearly leans pro is communication. Four virtual adaptive beamforming mics — two per earcup — monitor surrounding noise so your voice cuts through on calls and video conferences, and the app lets you fine-tune your voice for meetings, presentations or performances. Multi-point switching between a phone call and a desktop meeting, plus Google Fast Pair and Microsoft Swift Pair, rounds out the productivity angle. The build is a plastic shell with fabric, silicone and memory foam earcups, and AKG rates the battery at up to 100 hours with a 3-hour charge time. The box includes a carrying case, flight adaptor and charging cable.
Buy it if you want one headphone that can go wired for zero-latency monitoring, go dongle-wireless for a stable link, and still handle calls and travel. Skip it if you mainly want the longest possible ANC-on runtime or you like fiddling with EQ sliders — that's not what this design is optimized for.
CMF BY NOTHING Headphone Pro Active: Who It's For
The CMF BY NOTHING Headphone Pro Active is the lifestyle-first option. Its 40mm dynamic drivers carry LDAC and dual Hi-Res certification, and the frequency range stretches to 40kHz — well beyond what most listeners can hear, but a sign the tuning is aimed at detail rather than a blunt, bass-only signature. The nickel-plated driver description points to a sound with texture and energy across layered tracks, and Cinema and Concert modes widen the perceived soundstage for movies and music.
Noise cancelling is the real headline: up to 40dB of adaptive ANC, with a one-button toggle to Transparency Mode when you need to hear the room. Battery is the other big number — up to 50 hours with ANC on, and a 5-minute top-up that yields around 4 hours of listening. That fast-charge behavior is genuinely useful for someone who forgets to plug in. It also supports on-the-go charging straight from a phone or laptop, which is a clever trick for travel.
Controls are app-driven through the Nothing X app, with touch and button input plus Google Assistant and Siri support. You get a Personal Sound Profile and a Bass & Treble slider with custom EQ, so you can shape the response instead of accepting a fixed tuning. Bluetooth is version 5.4 with a rated 10m range and 120ms latency, and there's a 3.5mm jack plus AUX support for wired listening. The frame uses faux leather and plastic with memory foam earpads and a cap-friendly headband, and the unit weighs 283g. A protective case and cable are included.
Side-by-Side: Which Should You Choose?
• Best for low-latency wireless → AKG N9. The 2.4GHz USB-C dongle sidesteps Bluetooth latency entirely.
• Best for wired DJ use → AKG N9. The included 3.5mm cable plus dongle gives you two reliable signal paths.
• Best for ANC-on battery life → CMF BY NOTHING Headphone Pro Active. Up to 50 hours with cancellation running.
• Best for sound customization → CMF BY NOTHING Headphone Pro Active. Bass & treble slider, custom EQ and a personal sound profile.
• Best for calls and meetings → AKG N9. Zoom-certified with four beamforming mics and voice tuning in the app.
• Best for travel convenience → CMF BY NOTHING Headphone Pro Active. Fast 5-minute charge for about 4 hours, plus on-the-go charging from a phone or laptop.
• Best for high-resolution codec support → CMF BY NOTHING Headphone Pro Active. LDAC and dual Hi-Res certification, with a 20Hz–40kHz range.
• Best for anyone juggling multiple devices → AKG N9. Multi-point plus Google Fast Pair and Microsoft Swift Pair.
In my opinion, for DJ-focused buyers the AKG N9 is the safer pick. The dongle plus 3.5mm jack give you a predictable, low-latency path that Bluetooth alone can't guarantee, and the adaptive noise cancelling and beamforming mics make it a competent work headphone too. If you're not doing DJ work and you simply want the longest ANC-on runtime and the most tunable sound, I'd point you to the CMF BY NOTHING Headphone Pro Active instead. Both are worth a look — just check the current price on Amazon before deciding, since that's the one variable I can't weigh in for you.
FAQ
Yes. CMF rates it at up to 50 hours with ANC on, versus the AKG N9's 100-hour figure which isn't specified as ANC-on. CMF also supports a 5-minute charge for roughly 4 hours of playback.
On paper, CMF BY NOTHING Headphone Pro Active covers more ground: LDAC, dual Hi-Res certification and a 20Hz–40kHz range. The AKG N9 counters with LCP diaphragms and AKG Spatial Audio, so it's a tuning preference rather than a clear win.
Neither is a true in-ear monitor, but both are over-ear headphones with a 3.5mm jack. If you need the best bluetooth earbuds for DJ practice at home, the AKG N9's dongle and wired mode make it the more practical of the two.
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