ZZU Pearl Earbuds Review: 48 Hours of Battery and a Touchscreen Nobody Told Me About

 

I almost skipped these.

"Pearl" sounded like a colorway invented by a marketing intern. Bluetooth 5.4 is a spec that exists mostly to have a bigger number than 5.3. And 48 hours of playtime — every brand says that, and about half of them are technically counting the case while the buds die in five hours.

So I bought them annoyed and tested them for two weeks. Here's what actually happened.

The Case Has a Touchscreen. It's Not a Gimmick.

The first thing worth knowing: there's a small circular touchscreen on the charging case. You swipe to cycle through EQ modes, tap to check battery level, skip tracks. I thought I'd never use it. I use it every day now.

It's not that it does something revolutionary. It's just that it works, and it's faster than opening an app. Swipe once, EQ changes, case closes. Done.

Noise Cancelling: Honest Assessment

The ENC handles low, constant noise well — AC hum, road rumble, the ambient drone of an open-plan office. That covers most situations where you actually need it.

It doesn't handle voices well. A loud conversation a few feet away still comes through. If you're hoping to disappear completely in a busy coffee shop, these won't do that. If you're commuting or working somewhere with background hum, they're genuinely useful.

Sound Quality and the Five EQ Modes

The default tuning is bass-forward. A lot of earbuds at this price point go that route, and if you like it, great. If you don't — and I didn't — the five EQ presets are actually the solution rather than just a menu item.

Switching to Balanced opens the mids considerably. Vocal is noticeably clearer for podcasts and calls. I ended up using Vocal most of the time, with Balanced for music. The other three modes (Bass Boost, Treble Boost, and one labeled "Dynamic") I tried and mostly ignored, but they're there if you want them.

The sound is good. Not the best I've heard, but better than I expected at this price, and the EQ flexibility makes a real difference.

Battery Life

ZZU claims 48 hours total. Over two weeks of daily use — averaging 8–9 hours per session on the buds — I didn't run the case dry once. The buds themselves held up for around 9 hours before needing a case top-up.

That's the real-world number. Not lab conditions, not listening at 50% volume in a quiet room. Actual use.

Fit and Comfort

These are light. Not in a "feels cheap" way — in a "I genuinely forgot I was wearing them for three hours" way. They don't have an aggressive seal, which means you'll hear some of your surroundings even without ANC off. For outdoor exercise or walking around a city, that's a feature. For focused work or travel, it's a mild tradeoff.

Bluetooth 5.4 and Device Switching

Connection is fast and stable. Two weeks, daily use, iPhone and Android both, zero dropouts. That's the part that matters.

Device switching is less smooth. It doesn't auto-switch the way AirPods do — you'll reconnect manually when you change devices. Mildly annoying if you bounce between phone and laptop constantly, fine if you mostly use one device at a time.

The Pearl Finish

It's actually nice. Matte white with a subtle pearlescent sheen — not flashy, not aggressively minimal. The kind of thing that looks better in hand than in photos. The case is compact and pocketable.

Who These Are For

If you want AirPods Pro-level noise cancellation and automatic device switching, spend the extra money and get those.

If you want a solid pair of earbuds with genuinely good battery life, real EQ control, a case you can actually interact with, and a fit comfortable enough for long wear — the ZZU Pearl earbuds do all of that. They work on iPhone and Android without fuss, they sound better than the price suggests, and the 48-hour claim actually holds up.

The "Pearl" name grew on me too, for what it's worth.