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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-27 · 6 min read · Independent comparison
• Jxrev Earbuds biggest strength: a full wireless earbud system — Bluetooth 5.4, 13mm drivers, 32 hours of total playtime and a pocket-sized USB-C charging case.
• Jxrev Earbuds biggest trade-off: it's a one-piece ecosystem. The buds only work with the case that ships with them, and the case is plastic, not a cushioned cover.
• TOU-BEGUIN Charging Earphone Case biggest strength: durable soft silicone that wraps an AirPods 4 case against drops, scratches, fingerprints and dirt, with the charging port left open.
• TOU-BEGUIN Charging Earphone Case biggest trade-off: it's an accessory only. No earbuds inside, and it fits AirPods 4 specifically — not the Jxrev buds.
• Who Jxrev Earbuds is for: someone who needs earbuds and a charging case in one purchase, especially for sports and workouts.
• Who TOU-BEGUIN Charging Earphone Case is for: someone who already owns AirPods 4 and wants cheap insurance plus a bit of personality.
The Jxrev J51 is built around the idea that the charging case is half the product. You get the buds and a supermini case together, and the case does the heavy lifting: it stores the earbuds, recharges them on the go, and brings total playtime up to 32 hours. A single charge runs 6 to 8 hours. The case itself holds 400mAh and refills in about 1 to 2 hours over USB-C, so a short top-up is genuinely useful if you're heading out the door.
The buds themselves are 3 grams each, which is about as light as in-ear headphones get. Combined with an ergonomic shape that doesn't stick out of your ears, that's a design aimed squarely at movement — running, gym sessions, hiking. IP7 waterproofing backs that up, and the nano-coating is there to shrug off rain and sweat. Bluetooth 5.4 handles the connection with a stated range of 15 meters, and auto-pairing kicks in once you open the case after the first setup.
Sound-wise, the spec sheet points to 13mm dynamic drivers covering 20Hz to 20,000Hz, with bass and mids pushed forward. Each bud carries a mic with call noise cancellation, and adaptive noise cancellation is listed for the noise-control side. Touch controls on both ears handle volume, track skipping, play/pause, calls and voice assistant. Compatibility is broad — Android, iOS, PC, tablets, laptops and TV.
Who should buy it: anyone who wants earbuds, a case and a charger cable in one box, particularly if workouts are the main use case. Who should skip it: anyone shopping strictly for a case cover, or someone who wants a specific decorative look and doesn't need new earbuds. The case here is black plastic and functional, not a fashion item.
This is a different animal entirely — a soft silicone skin for the AirPods 4 charging case. It weighs about 40 grams and measures roughly 1.97 x 1.18 x 2.36 inches, so it hugs the case closely rather than bulking it up. The material is the point: silicone absorbs the kind of bumps that crack hard plastic, and it keeps scratches, fingerprints and dirt off the case underneath.
The design detail worth noting is the reserved charging port at the bottom. You don't have to peel the cover off every time you plug in — you just charge through it. For anyone who has wrestled a stiff case cover on and off, that's a real quality-of-life detail.
The other half of the pitch is the monkey design. It's meant to make your case stand out, and TOU-BEGUIN positions the whole thing around gifting — kids, teenagers, girls, friends. A metal hook is included so you can clip the case to a backpack or keychain, which doubles as anti-loss insurance when you're running, travelling, climbing or camping.
Side-by-Side: Which Should You Choose?
• Best for a complete audio setup → Jxrev Earbuds. Buds, charging case and USB-C cable all come in the box.
• Best for protecting AirPods 4 → TOU-BEGUIN Charging Earphone Case. Silicone full-body coverage with a reserved charging port.
• Best for battery life → Jxrev Earbuds. 32 hours total, 6 to 8 hours per charge, with a case that tops up in 1 to 2 hours.
• Best for workouts → Jxrev Earbuds. 3g buds, IP7 waterproofing and a fit designed not to protrude.
• Best for not losing your case → TOU-BEGUIN Charging Earphone Case. The included metal hook clips to a backpack or keychain.
• Best for gifting → TOU-BEGUIN Charging Earphone Case. The monkey design is aimed at kids, teens and friends.
• Best for device flexibility → Jxrev Earbuds. Bluetooth 5.4 across Android, iOS, PC, tablets, laptops and TV.
• Best if you already own AirPods 4 → TOU-BEGUIN Charging Earphone Case. Buying Jxrev would just duplicate what you have.
In my opinion, the right pick depends entirely on what's missing from your setup. If you need earbuds, I'd buy the Jxrev Earbuds — you get the full package, and the 32-hour total playtime with a fast USB-C case makes it a genuinely practical daily driver for workouts and commutes. If you already own AirPods 4 and just want to protect the case, I'd buy the TOU-BEGUIN cover instead; there's no reason to buy a second set of earbuds for that job. Buy the Jxrev when you need sound. Buy the TOU-BEGUIN when you need armor.
FAQ
how to charge earbuds case
how to charge case without earbuds
You can charge either case on its own. The Jxrev charging case holds its own 400mAh battery and charges over USB-C whether or not the buds are inside, so it's ready when you drop them back in. The TOU-BEGUIN cover doesn't have a battery at all — it just passes the charging connection through to your AirPods 4 case.
how to charge apple earbuds case
Your AirPods 4 case charges as normal, and the TOU-BEGUIN silicone cover stays on while it does — the reserved bottom port means no removal step. If you've clipped it to a backpack with the metal hook, you can leave it hanging and charge it there.
how to charge jlab earbuds case
JLab cases aren't covered here — the Jxrev system uses its own USB-C charging case, and the TOU-BEGUIN cover is made specifically for AirPods 4. Match the accessory to your actual model before buying, since neither product is designed for JLab earbuds.
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