We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-03 · 7 min read · Independent comparison
If you want a complete, self-contained pair of earbuds with a charging case that doubles as a phone power bank and a battery figure that borders on absurd, choose ONE LIFE Earbuds; if you already own AirPods Pro 3rd Generation earbuds and only your case is lost, cracked or refusing to charge, choose korllo A3122. These two products are both "charging case earbuds" on paper, but they solve completely different problems — one is a full audio kit for someone starting from zero, the other is a rescue part for someone who already has the earbuds and just needs the box that keeps them alive. That single distinction should decide your purchase before you read another word.
• ONE LIFE Earbuds biggest strength: an 1800mAh charging case that delivers up to 88 hours of combined playtime, shows remaining power on an LED display, and can even charge your phone through its USB-A port.
• ONE LIFE Earbuds biggest trade-off: it's a full earbud system with its own Bluetooth 5.3 pairing and its own sound signature — you're buying the whole package, not upgrading Apple hardware you already like.
• korllo A3122 biggest strength: a purpose-built replacement charging case for AirPods Pro 3rd Gen (A3064/A3063) with both USB-C and Qi wireless charging plus over-charge, over-voltage, over-temperature and short-circuit protection.
• korllo A3122 biggest trade-off: it is case only — no earbuds included — and it will not work with AirPods Pro 1st/2nd Gen, AirPods 3, AirPods 4 or any non-Apple earbuds.
• Buy ONE LIFE Earbuds if you want one purchase that covers earbuds, case, long battery life, waterproofing and emergency phone charging.
• Buy korllo A3122 if you already own AirPods Pro 3rd Generation earbuds and your original case is gone or failing.
The ONE LIFE Earbuds are built around one idea: never let the battery be the reason your day gets interrupted. The case packs an 1800mAh cell that supports up to 11 full recharges of the 50mAh earbuds, which adds up to a combined 88 hours. A single charge of the buds themselves runs roughly 6–8 hours, and the LED digital display on the case shows the remaining power of both the earbuds and the case, so you're never guessing. In my opinion, that display is the most underrated feature here — it turns "I think these are charged" into "I can see exactly how much is left."
Sound and fit are handled with the same practical mindset. Each earbud uses a 10mm dynamic driver covering a 20Hz–20,000Hz range, tuned for deep bass and clear treble, and the built-in noise reduction microphones are there to push down wind and crowd noise on calls. At 6g per bud with four sizes of silicone tips (S/M/L/XL), the fit is meant to stay put through long workouts and commutes. IPX7 waterproofing with nano-coating means sweat, rain and splashes aren't a concern.
Then there's the odd extra that makes this kit stand out: the case has a USB-A output port, so it works as a small power bank for your phone in an emergency. That's genuinely useful on a hike, at a festival or on a long travel day. The brand lists a 1-year warranty, and the model is M1.
Who should buy it: anyone who wants a complete, self-sufficient earbud setup — runners, gym-goers, commuters, students, travelers — and anyone who values a visible battery readout and the safety net of charging their phone from the case. Who should skip it: anyone who already owns AirPods Pro 3rd Gen earbuds and simply needs a replacement case, and anyone who wants to stay inside Apple's ecosystem rather than pair a new set of earbuds over Bluetooth 5.3.
The korllo A3122 is not a pair of earbuds. It's a replacement charging case for AirPods Pro 3rd Generation earbuds, models A3064/A3063, matching the A3122 case model. The listing is explicit that it's case only and that the left and right earbuds are not included, so the correct buyer is someone who already has working AirPods Pro 3 buds but a case that's lost, damaged or no longer holding a charge.
Setup is designed to be simple. You drop both earbuds into the case, keep the lid open, double-tap the front of the case until the indicator flashes white, then pick your AirPods in your phone's Bluetooth settings to finish pairing. If you've paired AirPods before, this will feel familiar; if you haven't, the tap-then-connect sequence is about as short as it gets.
Charging is where this case earns its keep. It supports both USB-C wired charging and Qi wireless charging, so it fits whatever pad or cable you already have on your nightstand. Inside, korllo built in over-charge, over-voltage, over-temperature and short-circuit protection — the kind of safeguards that matter when a case is sitting on a charger every night. The enclosure is white ABS plastic, so it blends with the Apple look rather than announcing itself.
Who should buy it: AirPods Pro 3rd Gen owners who need to get their earbuds charging again without buying a whole new set. Who should skip it: everyone else. It is explicitly not compatible with AirPods Pro 1st/2nd Gen, AirPods 3, AirPods 4 or any other model, and it obviously can't help you if you don't own AirPods Pro 3 earbuds in the first place. Check your earbud model before ordering — that's the one mistake this product punishes.
• Best for total battery life → ONE LIFE Earbuds. Up to 88 hours combined, with an 1800mAh case and an LED readout of remaining power.
• Best for replacing a lost or dead case → korllo A3122. It exists for exactly that scenario and nothing else.
• Best for workouts and rain → ONE LIFE Earbuds. IPX7 waterproofing plus 6g buds and four tip sizes (S/M/L/XL) suit running, gym and bad weather.
• Best for charging flexibility → korllo A3122. USB-C and Qi wireless charging in one case, with four built-in protection circuits.
• Best for emergency phone top-ups → ONE LIFE Earbuds. The case's USB-A port turns it into a pocket power bank.
• Best for staying in the Apple ecosystem → korllo A3122. It's designed around AirPods Pro 3rd Gen earbuds and their tap-to-pair behavior.
• Best for someone buying their first wireless earbuds → ONE LIFE Earbuds. Everything needed is in the box: earbuds, case, tips, cable-free Bluetooth 5.3 pairing.
• Best for a one-time repair, not an upgrade → korllo A3122. If your buds are fine and only the case failed, this is the narrower, smarter fix.
If I were spending my own money and I didn't already own AirPods Pro 3rd Gen earbuds, I'd buy the ONE LIFE Earbuds. The 88-hour combined playtime, the LED power display, the IPX7 rating and the case-as-power-bank trick make it a complete, self-sufficient kit for workouts, commutes and travel — and it's the product that keeps working even when your phone is dying.
The korllo A3122 is the better buy only in one specific situation: you own AirPods Pro 3rd Gen earbuds and your case is the broken part. In that case, buying a whole new set of earbuds would be wasteful, and this replacement case restores what you already have. Match the product to your situation and neither choice will disappoint.
FAQ
how to charge earbuds case
For the ONE LIFE Earbuds, you charge the case itself and it then recharges the earbuds inside — the LED display shows remaining power for both the buds and the case. The korllo A3122 case charges over USB-C or a Qi wireless pad, then passes that charge to your AirPods Pro 3 earbuds while they sit inside. In both cases, the case is the power source for the earbuds, so keep the case topped up first.
You can charge either case on its own with the earbuds removed. The ONE LIFE case holds an 1800mAh battery and can be charged independently, and its USB-A port even lets it act as a power bank for other devices. The korllo A3122 charges via USB-C or Qi wireless with the earbuds out, and its over-charge and over-voltage protection is designed for exactly that kind of everyday charging.
how to charge jlab earbuds case
That depends on the specific JLab model, and neither product here is a JLab case, so I can't give you a reliable answer from these data sheets. If you're cross-shopping, note that the korllo A3122 works only with AirPods Pro 3rd Gen earbuds (A3064/A3063) and is not compatible with other brands. For a JLab case, check that brand's own documentation.
how to charge apple earbuds case
If your Apple case is the korllo A3122 replacement, charge it with a USB-C cable or place it on a Qi wireless charger — both are supported. Then place your AirPods Pro 3rd Gen earbuds inside, keep the lid open, double-tap the front until the indicator flashes white, and pair in Bluetooth settings. Remember this case fits AirPods Pro 3rd Gen only, not 1st/2nd Gen, AirPods 3 or AirPods 4.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: TUMJUN Earbuds vs BUABMEQ Earbuds, BOSE QuietComfort 35 vs ZOHAN EM030: Noise Cancelling, Blue Microphones Yeti USB Microphone vs Sennheiser HD 400, JBL Quantum 200 vs Acer Gaming Headset