We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-02 · 6 min read · Independent comparison
If you want a self-contained pair of over-ear noise-cancelling headphones with huge battery life for flights and commuting, choose Anker Soundcore; if you need a compact Bluetooth DAC/amp that turns your existing wired headphones into LDAC-capable wireless ones, choose FiiO /Snowsky Retro Nano.
• Anker Soundcore (Space Q45): its biggest strength is a complete, standalone headphone package — adaptive active noise cancellation, up to 50 hours of playtime with ANC on, LDAC hi-res support, and a 3.5mm AUX option.
• Anker Soundcore trade-off: it's a fixed over-ear headphone, so you're locked into its drivers and its fit — you can't pair it with a nicer wired headphone you already own.
• FiiO /Snowsky Retro Nano: its biggest strength is flexibility — a pocketable Bluetooth receiver/DAC/amp with LDAC, aptX Adaptive and aptX LL, plus both 3.5mm unbalanced and 4.4mm balanced outputs.
• FiiO /Snowsky Retro Nano trade-off: it makes no sound on its own — no drivers, no earcups, no ANC — so it only works if you already own wired headphones and it gives you roughly 7.5 hours per charge.
• Who each one is for: pick the Soundcore if you want one box that does everything out of the box; pick the Retro Nano if you want to keep using your own wired headphones but cut the cord.
The Space Q45 is a fully self-contained listening device. It's built around 40mm dynamic drivers with a double-layer diaphragm made from silk and ceramic materials, which the spec sheet says produces intense bass and crisp treble. It supports LDAC for Hi-Res Audio Wireless, so on a compatible phone you get a higher-bitrate wireless stream than a standard Bluetooth codec gives you. This is a headphone you put on and use — nothing else required.
The headline feature is the noise cancelling. Soundcore describes a three-stage system that reduces noise by up to 98%, and it's adaptive: it automatically picks a suitable level based on whether you're indoors, outdoors, commuting or flying. If you want manual control, the app lets you choose from five noise cancelling levels and five transparency levels. Battery life is the other big number: up to 50 hours with ANC on, up to 65 hours in normal mode, and a 5-minute charge gets you 4 hours of playback. For a long-haul flight, that's the whole trip on one charge.
Who should buy it: commuters, frequent flyers, students and anyone who wants one pair of over-ear headphones that handles noise, calls and long listening sessions without accessories. The rounded-tip over-ear design, 10-meter Bluetooth 5.2 range and included 3.5mm AUX cable cover wired listening too. Who should skip it: if you already own a pair of wired headphones you love and just want to make them wireless, this isn't that product — and note this listing is a renewed unit with a 90-day limited warranty, which matters if you'd rather have a longer coverage window.
The Retro Nano is a different category of device entirely. It's a Bluetooth USB DAC and amp, not a headphone. You plug your own wired headphones into it, and it receives the audio wirelessly from your phone or computer. That's the whole trick: it upgrades whatever wired headphones you already own into wireless ones, and because it supports LDAC, aptX Adaptive and aptX LL, it can stream at higher quality than plain SBC or AAC Bluetooth.
The internals are the reason it exists. It runs two high-performance DACs and puts out up to 220mW of balanced output power, which is genuinely useful for harder-to-drive wired headphones. It offers both a 3.5mm unbalanced and a 4.4mm balanced output, so it covers both ordinary and balanced headphone cables. Battery is a detachable, rechargeable 3.7V lithium cell rated for up to 7.5 hours of continuous playback — and because it's replaceable, you're not stuck when the cell wears out.
Then there's the personality. The design closely replicates a classic cassette player in both shape and interface, with a dynamic retro UI. It ships with 8 custom-tuned retro-inspired sound effects, and you can do your own tuning through the app or the web interface. It's plastic-bodied, weighs next to nothing, and comes with a cable. Warranty is 1 year.
Who should buy it: people with a good pair of wired headphones who want wireless freedom without buying new headphones, and anyone who wants to tweak their sound signature. Who should skip it: if you don't own wired headphones, or if you want active noise cancelling or all-day battery, this isn't the right tool.
• Best for noise cancelling → Anker Soundcore. Adaptive ANC with up to 98% noise reduction and five adjustable levels in the app.
• Best for battery life → Anker Soundcore. Up to 50 hours with ANC on and 65 hours in normal mode versus roughly 7.5 hours for the Retro Nano.
• Best for using your own wired headphones → FiiO /Snowsky Retro Nano. It's a receiver/amp, so your existing headphones do the sound.
• Best for balanced output → FiiO /Snowsky Retro Nano. It has a dedicated 4.4mm balanced output at up to 220mW; the Soundcore has no balanced output.
• Best for travel and commuting → Anker Soundcore. Over-ear ANC plus a 5-minute quick charge for 4 hours is built for planes and trains.
• Best for sound customization → FiiO /Snowsky Retro Nano. 8 retro sound effects plus DIY tuning via app and web interface.
• Best for a single, no-extras purchase → Anker Soundcore. Everything is in the box: headphones, AUX cable, protective case.
• Best for a long coverage window → FiiO /Snowsky Retro Nano. 1-year warranty versus 90 days limited on the renewed Soundcore.
In my opinion, most people reading a comparison like this should buy the Anker Soundcore Space Q45. It's the one that works the moment you open the box: adaptive ANC, LDAC, 50 hours with noise cancelling on, and a wired backup. The Retro Nano is the smarter buy for a narrower, more specific person — someone with a good wired headphone who wants LDAC wireless and balanced output without replacing their headphones. If that's you, I'd take the Retro Nano. If it isn't, take the Soundcore.
what is ldac headphones
LDAC is a Bluetooth audio codec that streams at a higher bitrate than standard Bluetooth codecs, which is why it's associated with "Hi-Res Audio Wireless." Headphones described as LDAC headphones support that codec, so they can receive a higher-quality stream from a compatible phone or player. The Anker Soundcore Space Q45 supports LDAC.
what is ldac support in headphones
It means the headphones can decode an LDAC stream, and that both ends of the chain — the headphones and the source device — need to support it for you to benefit. The Space Q45 supports LDAC directly. The FiiO /Snowsky Retro Nano supports LDAC as a Bluetooth receiver, so it passes that higher-quality stream on to whatever wired headphones you plug in.
what is ldac codec in headphones
It's the encoding method used to compress and send audio over Bluetooth. A better codec generally means less compression and more of the original detail reaching your ears. Both products here support LDAC, but they use it differently: the Soundcore decodes it internally to its own 40mm drivers, while the Retro Nano decodes it and feeds it out through its 3.5mm or 4.4mm output.
what is ldac sony headphones
LDAC was developed by Sony, and the term shows up most often in relation to Sony's own headphones. Other brands license and support it too, which is why you'll see LDAC listed on products from Anker Soundcore and FiiO. If you want the benefit, check that your phone or player also supports LDAC before buying.
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