- 1,200mAh case charges your phone
- LED battery readout on the case
- Bluetooth 5.3
Buds out, Bluetooth on, tap the name: pairing an F9 takes under a minute. The trick is letting the two buds find each other before your phone joins in.
Fresh as of September 2026Take both buds out of the case in the same second and give them a few seconds to link; one bud keeps blinking. Open Bluetooth on the phone, tap the name that appears, often F9 or a model code, and wait for the Connected prompt. From then on the buds rejoin that phone by themselves.
F9 earbuds are two separate radios. Before any phone sees them, one bud takes the lead and pulls the other into a stereo pair, the link makers call TWS.
That link starts when both buds leave the case together. MDNS puts it plainly for its BTH-F9-5: remove both earbuds at the same time to synchronize. Voltstech and NC describe the same one-step move for their F9-5 and 2,200mAh F9.
The flashing bud is the one calling out to your phone. That is your cue to open Bluetooth settings.
Single-bud listening still works once the pair is linked. The Total-shop Mini F9 and the Volt Plus Tech F9 V5.3 Pro both let one bud play alone. Handy on a bike ride, where one open ear keeps you aware of traffic.
| Device | Menu path | What to tap | Check after pairing |
|---|---|---|---|
| iPhone or iPad | Settings › Bluetooth | The F9 name under Other Devices | Connected prompt in the buds |
| Pixel, Motorola and most Android | Settings › Connected devices › Pair new device | The F9 name under Available devices | Media audio switched on |
| Samsung Galaxy | Settings › Connections › Bluetooth | The F9 name under Available devices | Media audio switched on |
| Windows 11 laptop | Settings › Bluetooth & devices › Add device › Bluetooth | The F9 name in the scan | Stereo output set as default |
| Mac | System Settings › Bluetooth | Connect next to the F9 name | Output set to the buds |
Menu names from current iOS, Android, One UI, Windows 11 and macOS releases; older versions word them slightly differently.
An iPhone finds F9 earbuds on the same Bluetooth screen it uses for any headset. No app, no code, no account.
Some F9 boards show up twice, once for audio and once as a low-energy entry ending in BLE. Pick the plain name, since the BLE entry carries no sound.
After the first time, the iPhone handles it. Open the case at the gym door and the buds rejoin within seconds; the BSWLMDD F9 even throws up a connect pop-up as the buds come out.
Older iPhones pair just as well. Any iPhone with Bluetooth audio handles an F9, since the buds speak the same headset profiles as every other wireless earphone. The only thing that changes between iOS versions is where the widget and the safety settings sit.
iPhone refusing to show the buds? Another phone may still hold them. Switch Bluetooth off on the old device, or run the F9 factory reset to clear every stored pairing.
BSWLMDD F9 Earbuds |
DCBCODGAL CF9 Mirror-Lid Earbuds |
MDNS BTH-F9-5 Sport Earbuds |
BMHOLU F9-5 Ear-Hook Earbuds |
NC F9 with 2,200mAh Case | |
| Type | F9 | F9 | F9-5 | F9-5 | F9 |
| Case | 1,200mAh power bank | — | 2,000mAh power bank | 500mAh case | 2,200mAh power bank |
| Battery readout | Yes | Yes | Yes | Yes | Yes |
| Water rating | — | IPX7 | IPX7 | IPX7 | IP7 |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.3 | Bluetooth 5.0 | Bluetooth 5.3 | Bluetooth 5.0 |
| Playtime (with case) | 48h with the case | 15h with the case | — | 30h with the case | 126h with the case |
| Grab this pair | Grab this pair | Grab this pair | Grab this pair | Grab this pair |
Android keeps pairing under Connected devices on most phones. Samsung, Motorola and Pixel menus look a little different, yet the route is the same.
Many F9s carry a phone model in their names. Volt Plus Tech sells the same F9 Mini and 2,000mAh F9 marked for Galaxy, Moto G and Fire tablet owners. Inside, every one is a standard Bluetooth headset, so any version pairs with any Android phone.
Mixing Bluetooth versions is fine. A Bluetooth 5.0 pair such as the MDNS BTH-F9-5 connects to a Bluetooth 5.3 phone at the 5.0 level with no extra steps. The newer chip on a pair like the Volt Plus Tech F9 with 2,000mAh case mainly buys a steadier link through a jacket pocket.
The BMHOLU F9-5 powers on and rejoins the last phone the moment its lid opens. Soft ear hooks keep the Bluetooth 5.3 buds in place once they are playing.
Grab this pairF9 earbuds pair with anything that plays standard Bluetooth audio. Laptops, tablets and smart TVs all work through their own Bluetooth menus.
An F9 streams to a single source. To move from phone to laptop, switch Bluetooth off on the phone first, and the buds accept the laptop.
Laptops tend to jump to the hands-free profile when a call app opens, and music turns flat and tinny. Set the stereo output, often labelled Headphones or Stereo, as the default playback device in sound settings.
Gaming or watching video on a laptop? Bluetooth adds some delay on any F9. The Harigal F9-5C Mirror Case answers that with a four-tap game mode for lower lag.
Treadmill screens and gym bikes with Bluetooth audio follow the same routine. Put the machine in pairing mode, lift the buds out, and pick the F9 name from its list.
Pair once and an F9 reconnects by itself. Open the lid, lift the buds, and they head straight back to the last device they knew.
The BMHOLU F9-5 turns on and connects the moment its case opens. NC's 2,200mAh F9 links the buds to each other and to the last paired phone the moment they clear the cradle.
When autopilot fails, it tends to fail in one of three ways. Work through them fastest first:
Once the link is solid, the F9 tap controls handle tracks, calls and volume without touching the phone again.
The phone paired with one bud before the two linked. Forget the F9 entry, dock the pair for 10 seconds, then lift both out together and pair again.
Usually F9 or a model code. Volt Plus Tech's buds appear as F9, F9 Mini or YD03 depending on the model.
Take both out of the case. With no known device nearby they enter pairing mode on their own, and a flashing light on one bud confirms it.
Yes. Open Settings › Bluetooth and tap the F9 name; no app is involved, same as any Bluetooth headset.
Only one source plays at once. Switch Bluetooth off on the first device and the buds accept the second.