How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want total environmental awareness plus a phone-free music library for long outdoor sessions, choose Yistao Bone Conduction Headphones; if you need active noise cancelling, a pocketable charging case, and all-day battery, choose AOLBSPD Ear Buds Air.
• Yistao's biggest strength: an open-ear bone conduction design that leaves your ear canals completely free, paired with 32GB of built-in storage so you can run or ride without carrying a phone.
• Yistao's biggest trade-off: it has no noise cancelling at all, and because the drivers sit outside your ear, you're hearing the world along with your music — which is the point, but it means no isolation.
• AOLBSPD's biggest strength: hybrid active noise cancelling with a 4-microphone call system, plus a charging case that stretches the total runtime to over 42 hours.
• AOLBSPD's biggest trade-off: in-ear fit means you're sealed off from traffic, and the buds depend on the case to reach that headline battery figure.
• Who Yistao is for: runners, cyclists, and gym-goers who need to hear what's around them and want music without a phone.
• Who AOLBSPD is for: commuters, flyers, and office workers who want quiet, clear calls, and a compact case they can drop in a pocket.
The Yistao X6 is built around one idea: keep your ears open. Instead of pushing a driver into your canal, it rests a 16mm bone conduction vibrator against your cheekbone and sends sound through bone. The result is that ambient noise — a car behind you, a cyclist calling out, a gym coach shouting a cue — comes through unfiltered. If you've ever pulled an earbud out mid-run because you couldn't hear traffic, this is the design that fixes that problem permanently.
The second thing that stands out is the 32GB of built-in memory. That's room for over 3,000 songs, and you load them with the magnetic data-and-charging cable. In practice, that means you can leave your phone at home entirely on a long run and still have a full library. Bluetooth 5.3 is there when you do want your phone, and the open-ear hook shape is rated compatible with sunglasses, which matters if you wear shades on the road.
You should skip it if you want to block out a noisy train carriage or an open-plan office. Bone conduction simply doesn't do that, and the 8 ohm impedance with 86 dB sensitivity suggests it leans on efficiency rather than raw isolation to be heard.
AOLBSPD Ear Buds Air: Who It's For
The AOLBSPD Air Buds Pro (2nd Generation) go the opposite direction. These are true in-ear buds with hybrid active noise cancelling and an adaptive system that flips between Noise Cancelling and Transparency depending on where you are. Around a city, that's the more useful mode set: full quiet when you want it, a slice of the outside world when you cross a street.
Battery is the headline. The buds run 6–8 hours per charge, and the charging case takes the total past 42 hours. The case itself is small — roughly 6.5 cm by 4.8 cm by 2 cm, weighing 34.6 g — so it disappears into a jeans pocket. It charges over USB-C in about an hour, which is quick enough to top up between meetings. If you travel, this is the kind of runtime that gets you through a long flight and the days around it without hunting for an outlet.
Sound leans on 14.2 mm titanium dynamic drivers with a quoted latency of 0.01 ms, and the spec sheet claims lossless audio coding. I can't verify how that translates in a real room, but the driver size and codec support point to a fuller low end than an open-ear design can produce. The 4-microphone ENC system is aimed squarely at calls, and it's the feature that separates this from a basic pair of buds.
Comfort gets attention too: a semi-in-ear shape with sandblasted non-slip coating, three silicone tip sizes, and a claim that the fit works for glasses-wearers and small ears. The 32 ohm impedance is a conventional figure for this class. Trade-offs are the flip side of its strengths — sealing your ears is the whole point, so you lose awareness, and the 15-meter Bluetooth range is shorter than the Yistao's quoted 300 meters, though honestly both numbers are optimistic in the real world.
• Best for hearing your surroundings → Yistao Bone Conduction Headphones. Open-ear bone conduction keeps traffic, voices, and hazards audible.
• Best for blocking noise → AOLBSPD Ear Buds Air. Hybrid ANC with adaptive Noise Cancelling and Transparency modes.
• Best battery life → AOLBSPD Ear Buds Air. Over 42 hours total with the case versus 8 hours per charge on the Yistao.
• Best for phone-free workouts → Yistao Bone Conduction Headphones. 32GB of internal storage holds over 3,000 tracks without a paired device.
• Best for calls → AOLBSPD Ear Buds Air. A 4-microphone ENC system is built for voice isolation.
• Best for heavy sweat and rain → Yistao Bone Conduction Headphones. IP68 waterproofing plus hydrophobic nano-coating.
• Best for travel and commuting → AOLBSPD Ear Buds Air. Compact charging case, fast USB-C top-ups, and noise cancelling for planes and trains.
• Best for glasses-wearers → AOLBSPD Ear Buds Air on paper, since the tip sizing is aimed at that fit, while the Yistao is explicitly designed to work alongside sunglasses.
If I had to pick one, I'd buy the AOLBSPD Ear Buds Air. It covers more of my day — commuting, calls, flights, and desk work — and the charging case means I rarely think about battery. The noise cancelling and microphone array are the features I'd actually use most, and in-ear fit gives me the low end that open-ear designs can't match. That said, if your priority is running and cycling outdoors while staying aware of your surroundings, the Yistao is the smarter buy, and the 32GB library is a genuinely clever touch. The two barely compete for the same moment in your day.
FAQ
For outdoor running, yes — in my opinion. The open-ear design keeps you aware of traffic and the IP68 rating handles sweat and rain, and 32GB of storage means you can leave your phone behind.
Yes. They use hybrid active noise cancelling with adaptive switching between Noise Cancelling and Transparency modes, plus a 4-microphone ENC system for calls.
The AOLBSPD buds run 6–8 hours per charge but reach over 42 hours with the charging case. The Yistao offers 8 hours of playtime per charge and a 10-minute quick charge for 3 hours of use.
The AOLBSPD fits are sized for glasses-wearers with three silicone tip options. The Yistao is designed to sit alongside sunglasses, so both account for eyewear — pick based on whether you want isolation or awareness.
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See also: JBL TUNE 770NC vs Tayogo Rock PRO Waterproof, Eonini Open-Ear Earbuds vs Gelecek Bone Conduction Open-Ear, Youkei Compatible vs RLSOCO Carrying Case, Mokata Headphones Kids vs JBUNION Kids Headphones