Volt Plus Tech F9 Pro Touch

Volt Plus Tech rates the call-side noise reduction at up to 30 dB. The idea is simple: two mics per bud let the chip tell your voice, which arrives from one direction, from the traffic and wind that come from everywhere else.

• Two mics per bud. In a dual-mic layout, one mic typically favours your mouth while the second listens to the noise around you.
• CVC 8.1. Call processing that cleans the outgoing voice, so the caller gets your words, not the bus.
• Mono or stereo. Either bud handles a call on its own, so one ear can stay open to the street.
• Touch answer. Calls, tracks and volume run from the buds; a longer press wakes Siri or Google Assistant.

This is call cleanup, not active noise cancelling for music. What you hear in your own ears still depends on the seal of the tips. That is where the third tip size earns its keep: small, medium and large ship in the box, so most ears find a seal that blocks the rumble.

Ignore the Samsung Galaxy S21 Ultra wording on the box: it names one phone the pair suits, not the only one. iPhones and every other Bluetooth phone connect the same way.

Volt Plus Tech's own sums: 5+ hours from the buds, 20+ more stored in the case, roughly 25 all told. Hand some of it to a phone and the bud total shrinks to match.

To rescue a phone:

1. Run your phone's charging lead from the case output to the phone.
2. Watch the readout drop as power flows out.
3. Stop once the phone has enough to get you home, so the buds keep a reserve.

The case is not waterproof. The maker says it outright, so stash it inside a jacket on wet days and never charge it with a damp port.

Most current phones carry far bigger batteries than 2,000mAh, so treat it as a lifeline for the last hour of the day, not a replacement for the wall charger.

Recharge the case the same night you lean on it. A power bank that goes into the morning at half charge covers the buds but leaves nothing for the phone, and the readout makes that easy to spot before you leave.

For the full picture on case lights and battery habits, see the F9 charging guide.

1. Pop the lid and pull out both buds; a blue glow means they are awake.
2. No glow? Press and hold the touch panel for 3 to 5 seconds until it blinks blue.
3. In the phone's Bluetooth menu, pick YD03.
4. A voice in your ear says Connected, and you are done.

From the second day on, opening the case is the whole routine. No app, no account, nothing to install.

When pairing goes sideways, the fix is usually one of these:

• Only one bud connects. Dock both, shut the lid for ten seconds, then take them out as a pair.
• YD03 never shows up. Forget any old YD03 or F9 entry on the phone, then try again.
• Sound cuts out. Move the phone from a back pocket to a front one; your body blocks Bluetooth more than you would think.
• A bud refuses to charge. Clean the contacts on the bud and in its cradle with a dry cotton bud.

Bluetooth 5.3 helps once you are paired. Expect quicker reconnects out of the case and fewer dropouts where dozens of phones share the air.

Still stuck after all that? A factory reset wipes the pairing memory on both buds. The steps are in the F9 reset guide, and the phone-by-phone walkthrough lives in how to pair F9 earbuds.

Budget for the lower figure, and dry the buds after sweaty sessions before docking them. IPX3 is tested with spray up to 60 degrees from vertical; IPX4 with splashing from every direction. Neither covers a soaking, a rinse under the tap or a dunk.

Where the Pro Touch sits among its closest rivals:

Choose the Pro Touch if:

• Calls on the move are a daily thing.
• You need a medium tip for a good seal.
• The case doubles as your phone's backup battery.

Choose a sibling if:

• You run in the rain: the Volt Plus Tech F9 on a 2,000mAh power bank trades the extra mics for IPX7 buds.
• Calls are rare: the F9 V5.3 Pro covers the same case idea with simpler mics.

For the full lineup of Pro, F9-5, F9-5C and Mini versions, see the F9 versions compared.

One last check: size. A 2,000mAh case rides happily in a jacket or gym bag, less so in running shorts. If pocket room beats phone charging, the thin-case F9 Mini is the same maker's answer.