Two touch panels run everything on an F9 pair: music, calls, volume, power and the voice in your ear. Learn how to use F9 earbuds once and your phone stays in the locker.
Fresh as of September 2026Take both buds out of the case and they switch on by themselves. One tap plays, pauses and answers calls; double taps skip tracks; triple taps, a swipe or a button change volume, depending on the version. Put the buds back in the case, or hold a panel for about five seconds, to switch them off.
F9 earbuds power up the moment they leave the case. Lift both out together, and a small light blinks on each bud while a chime or a voice prompt confirms it.
No chime? The bud is flat or asleep. Hold the touch panel roughly three seconds; a blue flash confirms it. That is the manual power-on Volt Plus Tech gives for its F9 and F9 Mini buds, and most F9 boards follow the same pattern.
Taking both buds out at once matters. The two halves look for each other first, then for your phone. Pull one bud, wander off, and the second can end up talking to nobody; the F9 pairing steps cover the full link-up.
Heading out for a run? Power on at the door, not at the trailhead. The buds rejoin the last phone they knew within seconds, and the BMHOLU F9-5 does it the instant its lid opens.
| Pair | Volume control | Voice assistant | Extra control |
|---|---|---|---|
| BSWLMDD F9 | Touch panel | Touch panel | LED percentage on the case |
| DCBCODGAL CF9 | Swipe on the panel | Touch to wake | Mirror lid shows case and bud charge |
| BMHOLU F9-5 | Multi-function button | Tap | Ear hooks, lid-open reconnect |
| Volt Plus Tech F9 | One-touch volume | Touch to wake | 3-second hold powers on |
| Harigal F9-5C Mirror Case | Three taps: left up, right down | Hold 1.5 s | Four taps for game mode |
| Harigal F9-5C Twin Display | Three taps lower it | Hold 1 s | Blue ring confirms each touch; hold 5 s to power off |
Gestures as each maker publishes them for its buds. Boards change between production runs, so the insert in the box wins if it differs.
Every F9 bud carries a touch panel on its outer face, often styled like a fingerprint pad. Light taps do the work; pressing hard only shoves the bud deeper into your ear.
Tap maps shift a little from board to board. The two Harigal F9-5C pairs publish theirs in full, and the classic F9 layout sits close to both.
| Action | Harigal F9-5C Mirror Case | Harigal F9-5C Twin Display |
|---|---|---|
| Play or pause | One short press | One tap |
| Answer a call | Press once | One tap |
| Reject or end a call | Press again to reject | One tap ends it |
| Next track | Double-tap right | Two taps |
| Previous track | Double-tap left | Not published |
| Volume | Three taps: left up, right down | Three taps lower it |
| Voice assistant | Hold 1.5 seconds | Hold 1 second |
| Power off | Back in the case | Hold 5 seconds |
Two other F9s skip the tap-counting for volume. The DCBCODGAL CF9 takes a swipe across the panel. The BMHOLU F9-5 ear-hook pair puts volume on a physical multi-function button, easy to find with sweaty fingers.
Light rings help at the gym. The Twin Display buds flash blue on every touch and the Mirror Case buds glow green while playing, so a glance in the mirror confirms the tap landed.
|
BSWLMDD F9 Earbuds |
DCBCODGAL CF9 Mirror-Lid Earbuds |
BMHOLU F9-5 Ear-Hook Earbuds |
Harigal F9-5C Mirror Case |
Harigal F9-5C Twin Display | |
| Type | F9 | F9 | F9-5 | F9-5C | F9-5C |
| Case | 1,200mAh power bank | — | 500mAh case | — | — |
| Battery readout | Yes | Yes | Yes | Yes | Yes |
| Water rating | — | IPX7 | IPX7 | — | IPX7 |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.3 | Bluetooth 5.3 | Bluetooth 5.3 | Bluetooth 5.0 |
| Playtime (with case) | 48h with the case | 15h with the case | 30h with the case | — | 120h with the case |
| Grab this pair | Grab this pair | Grab this pair | Grab this pair | Grab this pair |
F9 earbuds volume control comes from three places: the buds, the phone and, on Android, a setting that links the two. Line all three up and even a quiet pair gets loud enough for a packed gym.
On the buds, volume is a tap pattern, a swipe or a button, as the Harigal, DCBCODGAL and BMHOLU pairs show. Volt Plus Tech calls it one-touch volume adjustment on its F9 range, sharing the panel with track skips.
Calls keep their own level. Turn it up during a call, not before, because phones store call volume apart from music.
One bud louder than the other? Wax on the mesh is the usual suspect, so brush it with a dry soft toothbrush. If a side cuts out completely, the F9 reset sequence relinks the halves.
A blue ring flashes on every touch, so you know a tap landed. One tap plays or answers, two skip, three lower the volume and a five-second hold powers off.
Grab this pairPlenty of F9 boards leave the factory with Chinese or bilingual voice prompts. The language lives in the bud firmware, so the switch happens on the buds, not in a phone setting.
Knowing how to change language on F9 earbuds comes down to timing: the buds must be on but not yet connected to a phone. Run it in this order:
On a pair where four taps mean game mode, such as the Harigal F9-5C Mirror Case, the taps change the mode instead. There the prompt language stays as shipped.
Looking for an F9 earbuds app? No F9 pair needs one. They run standard Bluetooth profiles, A2DP for music, AVRCP for the tap controls and HFP or HSP for calls, as the Total-shop Mini F9 and the Voltstech F9-5 spell out.
The phone's Bluetooth menu is the whole control room. On an iPhone, boards with the iOS power display that Total-shop names on its Mini F9 even feed each bud's battery into the Batteries widget. The four-tap game mode on the Harigal F9-5C Mirror Case needs no app either.
An F9 bud is a small bean with no stem, so fit comes down to the ear tip and a quarter turn. Seat it right and the bass fills in, the panel faces out and the bud survives a sprint.
Spare tips ship in the box on several F9s: three ear adapters with the Volt Plus Tech F9 power-bank pair, S, M and L tips with the F9 Pro Touch, four extra silicone tips with the Voltstech F9-5. For runs where tips alone will not hold, the BMHOLU F9-5 adds soft silicone ear hooks.
How to open F9 earbuds depends on the case. The classic power-bank F9 case has a hinged lid over the buds, and the DCBCODGAL CF9 swaps it for a mirror-finish lid. The Harigal F9-5C Twin Display holds its lid shut with magnets, so it flips open one-handed.
Charging ports on the Voltstech F9-5 and the Harigal Twin Display hide under a rubber plug. Pull it clear to plug in, then press it home before the next rain run.
Lift them from the cradle and they switch on by themselves. If a bud stays dark, hold its touch panel for about three seconds, or charge it for 15 minutes first.
Dock them in the cradle. Away from the case, hold a touch panel for about five seconds until the light goes out.
Depending on the version: triple taps, a swipe across the panel or a side button. The phone's volume keys always work too.
No. F9 earbuds work through the phone's Bluetooth menu, with controls, battery and calls all running over standard Bluetooth profiles.
With the buds on but not connected, tap one bud four times quickly or double-tap and hold. If the prompt stays the same, the board ships with a single language.
The AMOI F9 uses the same controls: taps for music, calls and tracks, a hold for power. Check its insert for the exact volume gesture.
