Top pairs
F9 Mini · slim case · IPX7

Volt Plus Tech F9 Mini

The pocket F9: IPX7 touch buds in a thin travel case with no power bank inside, in black or white, with most versions on Bluetooth 5.3 and an LED readout.

  • CaseUltra-slim travel case, no power bank
  • Bluetooth5.3 on most versions, 5.1 on the original black
  • WaterIPX7, 1 m for 30 minutes
  • BudsUp to 8 hours per charge
  • CallsCVC 8.0 noise reduction
  • ColoursBlack or white
Ideal for
  • Jeans or running-shorts pockets where a power-bank case bulges
  • Rainy commutes and sweaty sessions: the buds are IPX7
  • Calls on the move with CVC 8.0 mic processing
  • Anyone who charges every night anyway
Skip if
  • Topping up a phone: the Mini case has no power bank
  • Long trips away from a socket
  • Buyers who want a readout: the original black 5.1 version has none
Grab this pair
Colours & listings

Black or white, 5.1 or 5.3

Jeans pocket, no bulge: the F9 Mini case

Most F9 cases are chunky for a reason: a power bank lives inside. The Volt Plus Tech F9 Mini throws that out. What is left is a thin travel case that slides into a jeans pocket and IPX7 buds that handle rain and sweat.

Volt Plus Tech is blunt about it on the box: no power bank, charge from the cable. That is the trade. You give up phone top-ups and days off the grid, and you get a case that stops fighting your pocket.

  • Slim case: built for a front pocket, a small running belt or a jacket sleeve pocket.
  • IPX7 buds: rated for 30 minutes at a depth of one metre.
  • Touch controls: previous and next track, volume and the voice assistant from the bud.
  • CVC 8.0: call noise reduction, so your voice cuts through street noise.
  • Black or white: both colours ride in the same thin shell.

Battery is where the slim case shows its limits. Volt Plus Tech quotes up to 8 hours from the buds on one charge and 25 hours all told once the case chips in. That is plenty for a workday and a gym session. It is not a long weekend.

Nightly habit: the Mini suits people who plug everything in at bedtime. Case on the cable with the phone, and each morning starts full.

Setup is quick. Volt Plus Tech builds in automatic power-on and pairing, so the buds wake as they leave the case and find each other before your phone even asks.

The buds carry a dynamic driver with the brand's 8D bass tuning. Volt Plus Tech lists the housing in aluminium, high-strength plastic and metal. Ear tips come in small and large, so try both before the first run.

Spec sheet

Case, buds and battery

SpecValue
ModelF9 Mini
Bluetooth5.3 (original black version: 5.1)
CaseUltra-slim travel case, no power bank
Battery displayLED readout of case and buds on 5.3 versions
Water ratingIPX7, 1 m depth for 30 minutes
Playtime per chargeUp to 8 hours
Playtime with the caseUp to 25 hours (maker's figure)
Charge timeAbout 2 hours
Call processingCVC 8.0 noise reduction
MicrophonesQuad mic on the Micro Thin Case versions
ControlsTouch: previous, next, volume, voice assistant
DriverDynamic
Impedance25.94 ohm
Housing materialsAluminium, high-strength plastic, metal
Charging cableMicroUSB or USB-C, varies by version
In the boxBuds, slim case, small and large ear tips, cable, manual
ColoursBlack, white

Black on 5.1 or 5.3 with digits: choosing a Mini

The F9 Mini comes in two generations that look nearly identical from the outside. Pick carefully: the chip and the readout differ.

VersionBluetoothCase readoutMics
Original black5.1NoneCVC 8.0 call mic
Black, updated5.3LED, case and budsQuad mic on Micro Thin Case boxes
White, updated5.3LED, case and budsQuad mic on Micro Thin Case boxes

The original black Mini runs Bluetooth 5.1 and has no display. It is the plainest version. The updated black and white boxes step up to Bluetooth 5.3 and add an LED readout that shows the case and bud levels.

For most buyers the 5.3 version is the one to grab. The readout alone saves the moment of opening the lid to find the case flat. Bluetooth 5.3 tends to reconnect faster and keep a steadier link on a packed train.

  • Want the digits: pick any 5.3 version, black or white.
  • Want the simplest pair: the original black does the basics.
  • Want quad mics: look for Micro Thin Case on the box.

The phone names on the boxes do not mean a phone-specific build. Galaxy phones and tablets, Moto G, iPhone, iPad mini, OnePlus, Vivo and REVVL all appear, but inside it is the same F9 Mini. Every one of them pairs with whatever Bluetooth device you own.

Colour is taste. Black hides key scuffs in a pocket; white matches a white phone and is easier to spot at the bottom of a gym bag.

Check the charging cable too. Some Mini boxes list MicroUSB and others a USB-C cable, so match it to the chargers already in your bag.

Across the lineup

Where it sits among F9s

F9 earbuds models by version, September 2026. Highlighted: Volt Plus Tech F9 Mini.

Tram platform in the rain, IPX7 Mini buds in

The F9 Mini is a commuter at heart. Thin case in a pocket, buds in, rain on the platform, and nothing to worry about from the water.

Volt Plus Tech spells out the Mini's IPX7 in plain terms: one metre deep, half an hour. The brand credits a nano-coating, applied to the buds and inside the thin case, for keeping water out. Rain, sweat and a quick rinse are all inside that rating.

  • Towel off the sweat before you dock them.
  • Keep the charging port dry before plugging in a cable.
  • Skip swimming: IPX7 is a dunk rating, not a lap-pool rating.
  • Avoid hot water; the rating says nothing about heat.

Pairing takes seconds. Pull both buds out, let them link up, then pick them on the phone's Bluetooth screen. Pairing F9 earbuds breaks it down for iPhone and Android.

  1. Charge the case on the cable before the first commute.
  2. Take both buds out at once.
  3. Choose the F9 in the Bluetooth menu.
  4. Test a tap for next track and a hold for the assistant.

The F9 touch-control manual lists every gesture. For a bud that stays silent or buds that pair as two devices, use the F9 reset steps.

Morning check before you leave: on a 5.3 version, glance at the LED digits, and if the case reads low, plug it in over breakfast. The original 5.1 black has no readout, so give it a nightly charge by default.

Calls on the platform lean on CVC 8.0, a processing step that trims background noise from your mic. Trains and wind are still loud, so turn your head away from the gust when you talk.

Swap in

Three other pairs

2 BSWLMDD F9 Earbuds
Small case, more battery BSWLMDD F9 Earbuds
BSWLMDD F9: Bluetooth 5.3 and a 1,200mAh percentage case in a compact shell.
  • 1,200mAh case charges your phone
  • LED battery readout on the case
  • Bluetooth 5.3
Grab this pair

When the Mini loses to a power-bank F9

The Mini wins on pocket space. Everywhere else, a bigger case can beat it, and the choice is easy once you know your week.

NeedF9 MiniPower-bank F9
Jeans pocketYesBulky
Charge a phoneNoYes
Weekend with no socketTightComfortable
IPX7 budsYesOn many pairs

If your phone is always dying by evening, the Volt Plus Tech F9 with 2,000mAh case is the same brand's answer. IPX7 buds, a 5.3 chip, LED digits and a case that shares its charge.

If you want the Mini feel in a gym bag with more battery, the BSWLMDD F9 packs 1,200mAh in a still-small case. For rain first and a mirror lid, the DCBCODGAL CF9 is the pick.

Weight counts on a run too. A power-bank case carries a battery cell whether you use it or not. The Mini leaves that behind, which is why it rides so well in a running belt or a shorts pocket.

Buying as a gift? The Mini suits a commuter who hates bulk. The power-bank F9 suits a traveller or a festival-goer whose phone never makes it to midnight.

  • Before you buy: confirm the version is 5.3 if you want the readout.
  • Check the cable: MicroUSB or USB-C, depending on the box.
  • Think charging habit: nightly chargers love the Mini; forgetful chargers do not.

Compare the Mini against the F9-5, F9-5C and F9 Pro in the F9 version comparison.

Quick answers

Pairing and charging Q&A

Does the F9 Mini case charge a phone?

No. Volt Plus Tech built the Mini case with no power bank, so it only refills the buds. For phone top-ups, pick the 2,000mAh version.

Is the F9 Mini waterproof?

Yes for rain, sweat and a rinse: the buds carry IPX7. Pools and hot showers are a different matter, so keep them out of both.

Which F9 Mini version should I buy?

Pick a Bluetooth 5.3 version, black or white, if you want the LED readout. The original black on 5.1 has no display.

Does the F9 Mini only work with Samsung phones?

No. The phone names on the boxes are for search; the buds pair with anything that streams Bluetooth audio.

How long does the F9 Mini battery last?

Each bud charge runs up to 8 hours by Volt Plus Tech's count, and the whole set, case included, at up to 25 hours. Volume and calls shorten both.