Best pairs
i12-style in-ear buds · Bluetooth 5.4 · ENC calls

Btootos A90 Pro

Soft-tip stem earbuds with big 14.2mm drivers, AAC for iPhones, call mics that filter out the street and a case that shows the battery in digits.

  • SoundDual 14.2mm drivers, AAC and SBC
  • CallsENC call noise reduction
  • Bluetooth5.4, up to 15m
  • Battery6–8h per charge, 36h with the case
  • WaterIPX7 nano-coating
  • Warranty2 years
Lovely for
  • You make a lot of phone calls from busy places
  • You listen on an iPhone and want AAC streaming
  • You like a fuller, bass-forward sound from bigger drivers
  • You want a two-year warranty on a budget pair
Skip if
  • You want the longest battery in the case; others reach 48 to 60 hours
  • You need active noise cancelling for music
  • Ear tips are uncomfortable for you
Grab this pair
Colors & sets

The A90 Pro in black or dark blue

14.2mm drivers give the A90 Pro its bigger bass

Most budget stem earbuds use a 13mm driver, and the Btootos A90 Pro goes a size up to 14.2mm. A bigger driver can move more air, which you hear as a rounder low end on hip-hop, film scores and podcasts with deep voices. Btootos pairs it with a composite diaphragm aimed at keeping distortion down when the volume climbs.

The drivers only deliver that bass when the silicone tip seals your ear canal. Three sizes ship in the box, and the right one makes more difference than any equalizer tweak.

A short fit routine for a new pair:

  1. Start with the medium tips that come fitted.
  2. Seat each bud with a gentle twist, stem angled down.
  3. Play something with a steady kick drum at half volume.
  4. Swap to large tips if the bass sounds thin, or small ones if they press after a while.

Once the seal is right, the A90 Pro suits a wide spread of listening:

  • Bass-heavy playlists: the larger drivers are the main reason to choose this pair.
  • Films on a tablet: Bluetooth 5.4 keeps the delay low enough for dialogue to match lips.
  • Audiobooks: the tips block enough outside noise to follow a story on a train.
  • Workouts: IPX7 nano-coating keeps sweat out of the shell.

Btootos also mentions a built-in high-resolution decoder. In plain terms, the chip inside handles the incoming stream cleanly, while the sound you hear still depends mostly on the fit and on the source. Setting your music app to its higher streaming quality is a free upgrade worth making on day one.

There is no active noise cancelling, so the quiet you get comes from the tips alone. On a loud subway you will still hear announcements, which some commuters prefer.

Spec card

Every number on the box

SpecValue
ModelBtootos A-A90 Pro
FitIn-ear stem buds, silicone tips in S, M and L
BluetoothBluetooth 5.4, up to 15m range
PairingAutomatic pairing when taken from the case
DriversDual 14.2mm low-distortion composite dynamic
CodecsAAC and SBC
Impedance32 ohm
Call micsENC call noise reduction
Noise controlENC for calls; passive isolation from the tips
Playtime per charge6 to 8 hours
Total with caseUp to 36 hours
Case battery300mAh
ChargingUSB-C fast charging, about 1.5 hours for the case
Case displayLED readout for the case and both buds
Water resistanceIPX7, nano-coated
ControlsTouch: music, calls, voice assistant
Shell materialABS plastic
In the boxEarbuds, charging case, S/M/L tips, USB-C cable, manual
Warranty2 years

The A90 Pro streams AAC for iPhone and SBC for Android

Bluetooth earbuds squeeze music with a codec before it travels from the phone, and the A90 Pro supports two of them: AAC and SBC. iPhones stream Bluetooth audio in AAC, so an iPhone owner gets the format Apple prefers without changing a thing.

SBC is the codec every Bluetooth audio device understands, which is why the A90 Pro works with older Android phones, laptops, TVs and tablets too. Many Android phones can also use AAC; your phone picks the best shared option by itself.

Pairing takes about a minute:

  1. Charge the case for a few minutes so the buds wake reliably.
  2. Lift both buds from the case; they switch on and find each other.
  3. In the phone's Bluetooth menu, tap the new earbuds entry once.
  4. Put them back and close the lid; next time they reconnect automatically.
Two entries in the list? The buds have not linked to each other yet. Return both to the case, close the lid for ten seconds and try again, or follow the left and right re-link steps.

Bluetooth 5.4 gives the pair a range of up to 15m in open space, enough to leave the phone on a desk and walk around the room. Walls and bodies shorten that, so keep the phone in a front pocket on runs.

If sound stutters on one side, bring the phone closer before anything else. Bluetooth signals pass poorly through the body, and a phone in a back pocket is the most common cause of dropouts on any pair of buds. Step-by-step menus for iPhone, Android and laptops are in the pairing help.

Among the pairs

Where this pair lands

i12 TWS earbuds models by fit and case, September 2026. Highlighted: Btootos A90 Pro.

Keep A90 Pro calls clear on a noisy bus

Calls are where the A90 Pro earns its keep. ENC, short for environmental noise cancellation, uses the mics to pick out your voice and turn down the chatter, engines and wind around you before the sound reaches the other person.

ENC works on the outgoing side of a call. It does not quiet the world for you, but it means you can take a call from a bus stop or a busy kitchen without the other person asking you to repeat yourself.

Getting the clearest calls:

  • Seat the buds fully: the mics sit on the stems, and a stem pointing at your mouth picks up more voice.
  • Use one bud for long calls: the other can recharge in the case, and either side works alone.
  • Tap to answer: touch controls pick up, hang up and wake the voice assistant; the patterns are on the touch cheat card.
  • Check the case digits before a meeting: the LED shows both buds and the case, so a flat bud never surprises you mid-call.

Btootos rates the buds at 6 to 8 hours per charge. Long calls land nearer 6, since the mics and radio work harder than during music. A full afternoon of video meetings still fits comfortably on one charge.

For video calls on a laptop, pair the A90 Pro to the computer the same way as a phone, then pick it as both the speaker and the microphone in the meeting app. Many laptops quietly keep their own built-in mic, which throws away all the good work the ENC does.

The black version hides fingerprints on the case best, and the dark blue one adds a little color while staying low-key.

Trade-ins

Three other pairs to try

1 BESNOOW I53
Same drivers, longer case BESNOOW I53
The BESNOOW I53 pairs 14.2mm drivers with four ENC mics and 48 hours from its 400mAh case.
  • Silicone tips seal out street noise
  • Case shows the battery in digits
  • Bluetooth 5.4 · 48h with case
Grab this pair
2 Fhumsh A10
Most hours per charge Fhumsh A10
The Fhumsh A10 runs up to 8 hours per charge and 50 with the case, IPX7 included.
  • Silicone tips seal out street noise
  • Case shows the battery in digits
  • Bluetooth 5.3 · 50h with case
Grab this pair
3 Jxrev J53
Open fit, no tips Jxrev J53
The Jxrev J53 keeps Bluetooth 5.4 and ENC mics but rests in the ear the classic i12 way.
  • Open fit, no ear tips: the classic i12 shape
  • Case shows the battery in digits
  • Bluetooth 5.4 · 40h with case
Grab this pair

Weigh the A90 Pro's 36 hours against longer-running pairs

The A90 Pro's case adds up to 36 hours in total, from a 300mAh battery. That is plenty for most weeks, yet shorter than several stem pairs at a similar level, so it is the one trade-off to weigh before buying.

Btootos A90 ProBESNOOW I53Fhumsh A10
Drivers14.2mm14.2mm13mm
Bluetooth5.45.45.3
With case36h48h50h
WaterIPX7IPX7IPX7
Warranty2 years2 years90 days

The BESNOOW I53 is the closest twin: the same driver size and Bluetooth version, four call mics and a bigger 400mAh case. The Fhumsh A10 goes longest of the three, with a shorter warranty.

Before you settle on the A90 Pro, check these points:

  • Charging rhythm: 36 hours means plugging in the case about once a week at an hour or two a day.
  • Color: black and dark blue share the same buds, case and battery.
  • Warranty: two years from Btootos, generous for this kind of pair.

A small habit closes most of the gap. Put the buds back in the case whenever they come out, even for ten minutes, and they refill in short bursts through the day. The case then only needs its own cable top-up, about an hour and a half over USB-C.

If battery life tops your list, one of the 48-hour pairs will suit you better. If clear calls and a fuller bass come first, the A90 Pro is the better buy of the three, and the charging tips help stretch every hour it has.

Quick answers

Before these go in your ears

Does the Btootos A90 Pro work with an iPhone?

It does. The A90 Pro supports AAC, the codec iPhones use for Bluetooth audio, and it pairs like any Bluetooth headset.

Does the A90 Pro have active noise cancelling?

No. Its ENC sharpens your voice for the person you call; for music, the silicone tips block outside sound passively.

How long does the A90 Pro battery last?

6 to 8 hours per charge and up to 36 hours with the case. The 300mAh case refills over USB-C in about 1.5 hours.

Can I wear the A90 Pro at the gym?

Yes. The buds are IPX7 rated with a nano-coating, so sweat and rain are covered. Dry them before they go back in the case.

Which colors does the A90 Pro come in?

Black and dark blue, both with the same drivers, battery and LED case.