- 2,000mAh case charges your phone
- LED battery readout on the case
- IPX7 sweat and splash rating
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.
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.
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.
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 | Value |
|---|---|
| Model | F9 Mini |
| Bluetooth | 5.3 (original black version: 5.1) |
| Case | Ultra-slim travel case, no power bank |
| Battery display | LED readout of case and buds on 5.3 versions |
| Water rating | IPX7, 1 m depth for 30 minutes |
| Playtime per charge | Up to 8 hours |
| Playtime with the case | Up to 25 hours (maker's figure) |
| Charge time | About 2 hours |
| Call processing | CVC 8.0 noise reduction |
| Microphones | Quad mic on the Micro Thin Case versions |
| Controls | Touch: previous, next, volume, voice assistant |
| Driver | Dynamic |
| Impedance | 25.94 ohm |
| Housing materials | Aluminium, high-strength plastic, metal |
| Charging cable | MicroUSB or USB-C, varies by version |
| In the box | Buds, slim case, small and large ear tips, cable, manual |
| Colours | Black, white |
The F9 Mini comes in two generations that look nearly identical from the outside. Pick carefully: the chip and the readout differ.
| Version | Bluetooth | Case readout | Mics |
|---|---|---|---|
| Original black | 5.1 | None | CVC 8.0 call mic |
| Black, updated | 5.3 | LED, case and buds | Quad mic on Micro Thin Case boxes |
| White, updated | 5.3 | LED, case and buds | Quad 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.
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.
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.
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.
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.
The Mini wins on pocket space. Everywhere else, a bigger case can beat it, and the choice is easy once you know your week.
| Need | F9 Mini | Power-bank F9 |
|---|---|---|
| Jeans pocket | Yes | Bulky |
| Charge a phone | No | Yes |
| Weekend with no socket | Tight | Comfortable |
| IPX7 buds | Yes | On 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.
Compare the Mini against the F9-5, F9-5C and F9 Pro in the F9 version comparison.
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.
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.
Pick a Bluetooth 5.3 version, black or white, if you want the LED readout. The original black on 5.1 has no display.
No. The phone names on the boxes are for search; the buds pair with anything that streams Bluetooth audio.
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.