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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want long wireless listening with true multipoint pairing and app-based sound tuning, choose Sony Headphones; if you need a wired, low-impedance in-ear monitor built for gaming, studio monitoring and cable-swapping, choose TANGZU Wan'er S.G II.
• Sony Headphones biggest strength: Up to 50 hours of battery life, Bluetooth wireless freedom, and multipoint connection that switches between two devices at once.
• Sony Headphones biggest trade-off: No wired jack at all, no active noise cancellation, and it relies on the app for EQ — plus it's a renewed unit with a 90-day limited warranty.
• TANGZU Wan'er S.G II biggest strength: A 10mm PET dynamic driver in a contoured in-ear shell, with a detachable 0.78mm 2-pin silver-plated OFC cable and a 3.5mm plug with mic.
• TANGZU Wan'er S.G II biggest trade-off: It's fully wired — no Bluetooth, no multipoint, and you're tethered to whatever device the 3.5mm jack lives on.
• Who Sony Headphones is for: commuters, travelers and anyone juggling a phone and a laptop who wants one pair to hop between them.
• Who TANGZU Wan'er S.G II is for: gamers, entry-level IEM listeners and studio-minded users who want a replaceable cable and a sealed, fatigue-free fit.
The Sony model here is the WH-CH520, an over-ear wireless headphone in pink, and its whole personality is built around convenience. The headline number is battery: up to 50 hours of average life on a 3-hour charge, and a quick-charge trick where three minutes gets you roughly 1.5 hours of playback. For multi-day road trips or a festival weekend, that's the kind of figure that means you stop thinking about charging entirely.
The feature that matters most for this comparison is multipoint. Sony lists it plainly: the headphone can quickly switch between two devices at once. In practice that means your laptop holds the audio for a video call while your phone stays connected for a incoming-call handoff, and you don't re-pair anything. It's a small thing on paper and a genuinely large thing in daily use. Add a built-in microphone for hands-free calls and you can leave the phone in your pocket.
Sound is adjustable rather than fixed. The Sony | Headphones Connect App includes EQ Custom, so you can shift the tuning toward your taste, and DSEE is there to lift compressed files. It's a 32-ohm dynamic driver covering 20Hz–20,000Hz, so it's tuned for everyday listening, not reference work.
Who should buy it: anyone who wants wireless freedom, long battery, and the ability to move between two devices without friction. Who should skip it: if you need isolation from a noisy train, note that noise control is listed as none — this is not an ANC headphone. And since there's no headphone jack, it's wireless or nothing. It's also sold as a renewed unit with a 90-day limited warranty, which is worth weighing if long-term coverage matters to you.
The Wan'er S.G II is a completely different animal: a wired in-ear monitor. Its heart is a 10mm PET single dynamic driver with a pure PET diaphragm and an independent inner chamber, which TANGZU describes as delivering balanced, layered audio. That's the classic recipe for an entry-level IEM — a single dynamic driver done properly rather than a pile of drivers done cheaply.
The spec sheet tells you a lot about how it's meant to be used. Nominal impedance is 19 ohm with 113.5dB sensitivity, which is low-impedance and easy to drive. That means a phone, a PC, a handheld console or a Hi-Res player can push it without a dedicated amp — though it'll happily sit on one too. The 3.5mm plug with mic variant covers calls and game chat.
The cable is the other big story. It's a 1.2m silver-plated oxygen-free copper cable with an anti-tangle outer layer, and it terminates in a universal 0.78mm flat 2-pin connector. That's detachable, so if the cable fails or you want to change the sound texture, you swap it instead of replacing the whole set. For a wired IEM, that's the difference between a disposable and a keeper.
Fit is handled with a contoured, ergonomically curved shell and Tang Sancai silicone ear tips with an embedded SHAN internal filter, in multiple sizes. The tips do real work here: passive noise cancellation and sound isolation come from the seal, not electronics. Get the right tip size and you get secure, fatigue-free wear for long sessions. It ships with a carrying case and a 1-year warranty.
Who should buy it: gamers who want a low-latency wired connection, people starting out with IEMs, and anyone who wants a replaceable cable. Who should skip it: if you want to walk around untethered or pair to two devices at once, this is the wrong tool — it's wired only.
• Best for multipoint pairing → Sony Headphones. Two devices connected at once, switching on the fly, no re-pairing ritual.
• Best for battery life → Sony Headphones. Up to 50 hours, plus a 3-minute quick charge for about 1.5 hours of playback.
• Best for low latency and gaming → TANGZU Wan'er S.G II. A wired 3.5mm connection has no codec delay to worry about.
• Best for noise isolation → TANGZU Wan'er S.G II. Passive isolation from a proper ear-tip seal beats an open over-ear with no noise control.
• Best for cable longevity → TANGZU Wan'er S.G II. The detachable 0.78mm 2-pin design means a failed cable is a cheap fix.
• Best for calls and hands-free → Sony Headphones. Built-in mic and app control, phone stays in your pocket.
• Best for sound tuning flexibility → Sony Headphones. EQ Custom in the app plus DSEE for compressed files.
• Best for easy driving from any source → TANGZU Wan'er S.G II. 19 ohm and 113.5dB means almost anything can run it.
In my opinion, this comes down to one question: do you need to be untethered and connected to two devices at once? If yes, I'd buy the Sony Headphones. Multipoint plus 50 hours of battery is a combination that removes two daily annoyances — re-pairing and charging — and the app EQ lets you shape the sound to taste. If instead you want a wired IEM for gaming, monitoring or simply better isolation with a cable you can replace, I'd buy the TANGZU Wan'er S.G II. Different jobs, different answers. Check the current price on Amazon before deciding.
how to pair multiple headphones
You can't pair several headphones into one audio stream on most phones — a device connects to one audio output at a time. What you can do is pair one headphone to two sources via multipoint, which is exactly what the Sony Headphones support: it switches between two connected devices.
how to pair multiple headphones iphone
On iPhone, pair the headphone normally through Bluetooth settings, then pair the second device the same way. With multipoint, the Sony Headphones keep both connections live and hand off audio automatically; the TANGZU Wan'er S.G II is wired, so it connects through the 3.5mm jack instead.
how to pair multiple headphones on ipad
An iPad connects to one Bluetooth audio device at a time, same as an iPhone. If you want to move between an iPad and a phone without re-pairing, a multipoint headphone like the Sony model is the practical choice, since it holds two devices at once.
how to pair multiple bluetooth headphones
Playing the same audio to two Bluetooth headphones simultaneously isn't a standard feature on phones or tablets. The realistic setup is multipoint on one headphone — two sources, one headphone — which the Sony WH-CH520 does, while the TANGZU Wan'er S.G II skips Bluetooth entirely.
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