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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-19 · 7 min read · Independent comparison
These two products are easy to mix up in search results because they overlap in exactly one place: "over-ear audio comfort." Beyond that, they live in different categories. One is a spare part. The other is the whole device. Let me break down what each one actually is, based only on what the spec sheets tell us, and then tell you which one I'd put my money on depending on your situation.
• Akkiv Replacement earpads Compatible — biggest strength: purpose-built fit for the Sony WH-H910N, with high-density memory foam and soft protein leather that's designed to reduce face pressure on long listening sessions.
• Akkiv Replacement earpads Compatible — biggest trade-off: it's a two-piece pad set, not a headphone. It only helps you if you already own the WH-H910N, and it's useless otherwise.
• JUNJIEUNVO BT1638 — biggest strength: a full Bluetooth 5 over-ear headphone with a 40-hour battery, 40 mm dynamic drivers and an adjustable metal headband, all in one purchase.
• JUNJIEUNVO BT1638 — biggest trade-off: noise control is passive only, and the colorways lean decorative (champagne gold with chrome accents), which won't suit someone who wants a plain black commuter pair.
• Who each pick is for: Akkiv is for an existing WH-H910N owner whose pads are worn out. JUNJIEUNVO is for someone buying headphones from scratch who wants long battery life and a dressy look.
The Akkiv set is a replacement earpad kit for one specific headphone: the Sony WH-H910N. That's the whole story, and it's an important one. This isn't a universal pad that "sort of fits" a bunch of models. The listing states compatibility with that model directly, and the manufacturer is Akkiv, so you're buying a third-party pad rather than an original Sony part. If your WH-H910N pads have flattened, cracked or started flaking, this is the kind of product that gets you back to a usable pair without replacing the headphones themselves.
What it does best comes down to materials. The pads use high-density memory foam wrapped in soft protein leather, and Akkiv describes the foam as having good rebound, meaning it springs back instead of staying crushed. In practice, that's the difference between a pad that feels plush in month one and a pad that still feels supportive in month six. The protein leather surface is the same general family of material used on a lot of headphone pads because it's smooth against skin and easy to wipe down. The design also aims at pressure distribution, which matters on the H910N because that headphone already clamps fairly snugly.
There's a light blue colorway, so you're not getting a neutral black match — you're making a visible choice. And Akkiv backs the pads with a 90-day warranty plus 24-hour customer service, with a stated full refund if something goes wrong with the product. That's a reasonable safety net for a small accessory.
Who should skip it? Anyone who doesn't own a WH-H910N. Also anyone who wants an exact factory-original color match, or who dislikes a bright accent on their headphones. And if your H910N is failing electronically, new pads won't fix that.
The JUNJIEUNVO BT1638 is a finished over-ear wireless headphone, not a component. It's built around a 40 mm dynamic driver with a 32 ohm impedance, a 20 Hz frequency response and 102 dB sensitivity — those are the numbers of a mainstream, easy-to-drive headphone that a phone or laptop can power without any help. Bluetooth 5 handles the wireless side, with a stated range of about 33 feet, and there's also an AUX jack plus a USB-C charging port and one USB 2.0 port.
The headline figure is battery life: 40 hours of average use on a 2-hour charge. For anyone who resents charging headphones every couple of days, that's the number that matters most. Forty hours covers roughly a full workweek of commuting plus a few evenings, and two hours to refill is quick.
Noise control here is passive, not active. That means the isolation comes from the physical seal of the cushions and the over-ear enclosure, not from electronics canceling sound. Passive isolation on a well-padded over-ear pair can be genuinely decent for blocking steady background noise, but it won't match a dedicated ANC headphone. If you fly a lot and need to mute engine drone, set your expectations accordingly.
Comfort and fit are clearly where JUNJIEUNVO put effort. There's a plush padded headband, cushioned ear cups and an extendable headband with metal components so it adjusts to different head sizes and holds its setting. The enclosure mixes fabric, memory foam and metal, and the whole thing weighs 12 ounces — on the heavier side for a wireless over-ear, which is worth knowing if you're sensitive to weight on the crown of your head. Controls are both touch and button based, which is a nice redundancy: physical buttons for volume and playback, touch for the rest.
Styling is deliberate. Champagne gold finish, chrome accents, smooth curves, sold as a single retail-boxed unit aimed at adults. It reads as a fashion-leaning headphone rather than a studio tool. Latency is listed at 40 ms, which is fine for music and podcasts and acceptable for casual video, though competitive gamers may notice a touch of lag.
• Best for repairing headphones you already own → Akkiv Replacement earpads Compatible. It exists for exactly one job: restoring a WH-H910N.
• Best for buying your first wireless over-ear pair → JUNJIEUNVO BT1638. It's a complete, self-contained product.
• Best for long battery life → JUNJIEUNVO BT1638. 40 hours on a 2-hour charge is the standout spec of the two.
• Best for long-session face comfort → Akkiv Replacement earpads Compatible. Memory foam with strong rebound and reduced pressure is the entire design brief.
• Best for a dressy, statement look → JUNJIEUNVO BT1638. Champagne gold and chrome accents versus Akkiv's light blue utility aesthetic.
• Best for blocking noise electronically → neither. JUNJIEUNVO is passive-only; Akkiv is a pad, so isolation depends on the seal it creates.
• Best for adjustable fit across head sizes → JUNJIEUNVO BT1638. The extendable metal headband is built for that.
• Best for a low-commitment fix → Akkiv Replacement earpads Compatible. Small, targeted, and backed by a 90-day warranty.
In my opinion, if you already own Sony WH-H910N headphones, the Akkiv Replacement earpads Compatible set is the smarter buy — it addresses the single most common failure point on any over-ear headphone, the pads, and the memory foam and protein leather spec suggests it should hold up. I'd recommend the JUNJIEUNVO BT1638 if you're starting from zero, because 40 hours of battery, a 40 mm dynamic driver and an adjustable metal headband make it the more complete product for the money you'd spend either way. Buying pads when you need headphones, or headphones when you need pads, is the only real mistake here.
No. They're completely different categories. Akkiv is a two-piece replacement earpad set for the Sony WH-H910N. JUNJIEUNVO BT1638 is a full pair of Bluetooth over-ear headphones. The only thing they share is that both relate to over-ear listening comfort.
Based on the listing, compatibility is specified for the WH-H910N only. I'd treat it as a model-specific part rather than a universal pad. If you own a different headphone, don't assume it will seat correctly.
Its noise control is passive, coming from the over-ear cushion seal and the padded enclosure rather than active electronics. That helps with steady background hum, but it isn't the same experience as an active noise-cancelling headphone.
Prices change constantly, so I don't quote them here. Use the "Check latest price on Amazon" button on this page to see the live figure for whichever product you're leaning toward.
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