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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want maximum playtime and an over-ear design that supports LDAC over both wireless and wired listening, choose Amazon Renewed Edifier W820NB; if you need compact earbuds with stronger adaptive noise cancellation, a lower Bluetooth version number for newer device pairing, and app-based EQ control, choose EarFun Air Pro 4i. Both are LDAC headphones, but they solve very different problems, and the right one for you comes down to how and where you actually listen.
• Amazon Renewed Edifier W820NB — biggest strength: 49 hours of playback and a 40 mm driver in a 220 g over-ear frame, with LDAC plus a 3.5 mm jack for wired hi-res listening.
• Amazon Renewed Edifier W820NB — biggest trade-off: It is a Renewed unit with a 90-day limited warranty note alongside a stated one-year warranty, and it is a bigger, heavier item to carry than earbuds.
• EarFun Air Pro 4i — biggest strength: Up to 50dB adaptive hybrid ANC, 6 mics with AI ENC, multipoint Bluetooth 5.4, IP55 rating, and EQ control through the EarFun App.
• EarFun Air Pro 4i — biggest trade-off: Battery life drops to 6.5 hours per charge (27 with the case) once ANC is on, and there is no wired jack option at all.
• Who each pick is for: Choose the Edifier if you want long-session, over-ear comfort and wired flexibility; choose the EarFun if you want pocketable earbuds, stronger noise cancellation, and app tuning for commutes and workouts.
The W820NB Plus is an over-ear Bluetooth 5.2 headphone built around a 40 mm mantle-plated composite dynamic driver. That driver is the reason LDAC matters here: the spec sheet lists LDAC decoding at 990Kbps transfer speed, well above Qualcomm aptX HD at 576Kbps, AAC at 512Kbps, and SBC at 328Kbps. In plain terms, more data moves per second, so more of the detail in a hi-res file survives the trip from your phone to the drivers. It also supports hi-res audio both wirelessly and wired, thanks to the 3.5 mm jack — something the EarFun simply does not offer.
Comfort is clearly the design priority. At 220 g (7.9 oz) with memory foam cushions and a zero-pressure patent, this is a headphone meant to sit on your head for hours, and the sheet specifically notes it works even with glasses. Hybrid ANC is rated at -43dB, which is enough to take the edge off a commute, an office, or a flight without the heavier cancellation figure the EarFun claims. The ambient sound mode gives you 7 levels of outside-volume adjustment, so you can hear announcements or a colleague without pulling the headphones off. For calls, the built-in mics use DNN noise cancellation. Battery is the headline: 49 hours per charge, plus 7 hours from a 10-minute fast charge.
Who should buy it: anyone who listens for long stretches at a desk, on trains, or on planes, wants one pair that works wired or wireless, and prefers an over-ear fit. Who should skip it: if you want something that disappears into a pocket, if you need the strongest possible cancellation, or if you are uncomfortable buying a Renewed unit — this listing is a Renewed product, and the warranty fields are worth reading carefully, since the sheet lists both a one-year warranty and a 90-day limited warranty description. Check the current price on Amazon before deciding whether the Renewed route suits you.
The Air Pro 4i is a true wireless in-ear bud with an 11 mm dynamic driver, a 20 Hz–20,000 Hz frequency range, and 32 ohm impedance. It supports LDAC for hi-res audio, and EarFun pairs that with a 3D surround sound effect for a wider, more enveloping presentation. If your priority is raw noise reduction, this is the more aggressive design: adaptive hybrid ANC rated up to 50dB, which automatically adjusts cancellation level based on your surroundings rather than staying fixed. That is the kind of feature that matters on a busy street or a noisy open-plan office, where the noise floor keeps changing.
Call quality is a stated focus — 6 AI-enhanced ENC microphones work to reduce background noise on your end of the conversation. Connectivity is Bluetooth 5.4 with multipoint, so it can hold two devices at once and switch between a phone and a laptop, plus Google Fast Pair for quick Android setup. Battery is 9.5 hours per charge and 40 hours with the case in normal mode, dropping to 6.5 hours and 27 hours with ANC on; a 5-minute top-up gives about 2 hours. The buds are IP55 rated for water and dust, which covers sweat and light rain. The EarFun App lets you adjust EQ, switch noise-cancelling modes, and redefine touch controls — note the sheet's own tip to update firmware for the best experience.
Who should buy it: commuters, gym-goers, and anyone juggling two devices who wants compact buds with app-level control and very strong cancellation. Who should skip it: if you want a wired option, marathon battery with ANC running, or the open, airy feel of an over-ear cup, this is not the pick. There is no 3.5 mm jack here.
• Best for battery life → Amazon Renewed Edifier W820NB. 49 hours per charge versus 40 hours with the EarFun case (27 with ANC on).
• Best for the strongest noise cancellation → EarFun Air Pro 4i. Up to 50dB adaptive hybrid ANC against the Edifier's -43dB hybrid ANC.
• Best for wired listening → Amazon Renewed Edifier W820NB. It has a 3.5 mm jack; the EarFun has no jack.
• Best for calls in noisy places → EarFun Air Pro 4i. 6 mics with AI ENC versus the Edifier's DNN-assisted built-in mics.
• Best for long-session comfort → Amazon Renewed Edifier W820NB. 220 g over-ear with zero-pressure memory foam and a glasses-friendly fit.
• Best for portability and workouts → EarFun Air Pro 4i. In-ear buds, IP55 water and dust resistance, and a charging case.
• Best for two-device switching → EarFun Air Pro 4i. Bluetooth 5.4 with multipoint and Google Fast Pair.
• Best for sound tuning control → EarFun Air Pro 4i. The EarFun App handles EQ, ANC modes, and touch controls; the Edifier uses push-button media control.
• Best for hi-res detail on paper → a tie, with a caveat. Both support LDAC, but only the Edifier also does hi-res over a wired connection.
In my opinion, I would buy the Amazon Renewed Edifier W820NB if I listen at a desk, on long trips, or anywhere I want one headphone that works wired or wireless and never needs charging anxiety. The 49-hour figure, the 40 mm LDAC driver, and the over-ear comfort make it the better everyday companion for extended listening. I would switch to the EarFun Air Pro 4i if my day is built around commuting, calls, and workouts — the 50dB adaptive ANC, 6-mic ENC setup, IP55 rating, multipoint, and app EQ simply fit that life better. Pick by where you listen, not by which looks better on paper.
what is ldac headphones
LDAC is a high-resolution Bluetooth audio codec, and "LDAC headphones" means a headphone or earbud that can decode it. The Edifier W820NB Plus lists LDAC at 990Kbps versus 328Kbps for SBC, and the EarFun Air Pro 4i also supports LDAC — both deliver more data per second than standard Bluetooth audio.
what is ldac support in headphones
It means the headphones carry an LDAC decoder, so they can receive a higher-bitrate stream from a source device that also supports LDAC. You need both ends to match: a compatible phone or player, plus headphones like these two. Without that, the audio falls back to a lower-tier codec such as AAC or SBC.
what is ldac codec in headphones
LDAC is the codec itself — the encoding method that compresses and sends audio over Bluetooth. In the Edifier's spec sheet it sits at the top of the listed transfer speeds at 990Kbps, above aptX HD, AAC, and SBC. Higher bitrate generally means more retained detail, which is why it matters for hi-res listening.
what is ldac sony headphones
LDAC was developed by Sony, so "LDAC Sony headphones" usually refers to Sony models using it. You do not need Sony hardware to benefit, though — the Edifier W820NB Plus and EarFun Air Pro 4i both list LDAC support, so any LDAC-capable source can take advantage of it.
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