Using TransBuds O2 on iOS

O2+iOSTutorial

Switch device/system

1. Download the App

①Scan the QR code on the back of the box to download

②Search "voicepie" in App Store to install

③Click here to download the installer

2. Grant Permissions

When opening voicepie for the first time, allow the following permissions in order — skipping any may affect your experience.

1

Allow Microphone Access

iOS will prompt "voicepie would like to access the microphone" — tap Allow.

Translation needs your microphone to capture your voice input.

2

Allow Bluetooth Access

iOS will prompt "voicepie would like to use Bluetooth" — tap Allow.

Bluetooth is the only way iOS can connect to your voicepie translation device.

3

Allow Cellular Data

Allow voicepie to use cellular data and Wi-Fi.

Real-time translation requires an internet connection — keep this enabled.

Not sure if everything's enabled? Open My Profile → Permission Manager in the app to check. You can also re-enable Bluetooth in iPhone Settings → voicepie.

3. Connect Your Device

1

Plug the O2 Dongle into your iPhone

The Dongle's blue light blinks, waiting for Bluetooth pairing.

2

Turn on the O2 earphones — auto-pairs with the Dongle

The Dongle's blue light turns into a flashing purple — pairing complete. **No need to pair via iPhone Bluetooth settings.**

3

Open voicepie App

Wait a moment — the home screen shows your connected device.

4. Getting Started

Translation Modes

O2 supports 6 translation modes — tap one on the app home or Picture-in-Picture window to start.

Call Translation

Translate both sides of phone calls and conversations in Skype, WhatsApp, Zoom, and other calling apps in real time.

Meeting Transcription

Transcribe and translate remote meetings in Zoom or Teams, as well as conversations in on-site meetings, so they are easier to follow and review.

Video Translation

Translate foreign-language videos, news, and podcasts on YouTube, Netflix, and other media apps in real time.

Livestream Translation

Translate livestream audio on YouTube, Twitch, TikTok, and other platforms to connect with audiences across languages.

Live Interpretation

Understand conversations around you during international travel, business visits, and exhibitions with real-time interpretation.

Face-to-Face Translation

Have two-way conversations with international clients and friends using either of the two button-control options.

Two-Button Controls

Single-Button Controls

App Home & Device Status

1

Confirm the App Home Shows O2 as Connected

After connecting, the App Home shows the TransBuds O2 device card and device number. Confirm the device information before selecting a translation mode.

2

Check the O2 Connection in My Profile

Open My Profile to check O2's connection status, version, and device number.

Languages & Voice

1

Choose Languages After Opening a Mode

After opening Call Translation, Meeting Transcription, Livestream Translation, Video Translation, Live Interpretation, or Face-to-Face Translation, choose your language and the other person's language. Selecting the wrong languages will reduce recognition and translation accuracy.

2

Open Settings in the Top-Right Corner

After entering a translation mode, tap the settings button in the top-right corner to adjust playback and voice options.

3

Choose a Voice Tone

In Playback Settings, open the voice option and choose a male or female voice for translated speech.

TIP

Switch between male and female voices, or contact support for additional languages and custom voice cloning.

Playback Settings

1

Adjust Playback for Your Scenario

Playback Settings control what each side hears. Keep the defaults for your first use, then adjust the original and translated audio for calls, livestreams, or face-to-face conversations.

Picture-in-Picture

1

View Translations in Picture-in-Picture

After entering a translation mode, the Picture-in-Picture window can stay above other apps. Drag it anywhere to keep reading translations during calls, web browsing, or other activities.

5. FAQ

iOS-specific

Q: How do I open / use Picture-in-Picture?

A: Once you enter a translation mode, the PiP window appears automatically and floats on top of other apps. Drag it anywhere — even switching to another app keeps it visible.

Q: Dongle's blue light keeps blinking and won't turn purple?

A: Means the Dongle hasn't paired with the earphones yet:

1. Confirm the O2 earphones are powered on
2. Move them closer to the Dongle (within 1 meter)
3. Wait a few seconds for the Dongle's light to turn purple

Q: iOS version requirements?

A: iOS 14 minimum. Latest iOS is recommended for the best experience.

General

Q: Translation isn't accurate — what can I do?

A: A few common culprits:

• Media volume too low: voicepie picks up audio less clearly. Turn it up.
• Noisy environment: Move to a quieter spot, or speak closer to the mic.
• Speaking too fast or talking over each other: Slow down a bit, wait your turn, break long sentences into chunks.
• Accent or unclear pronunciation: Use standard speech where possible, avoid slang, repeat important info if needed.
• Specialized terminology: Use more common words where possible. For critical terms, run them through translation alone first to confirm.

Still stuck? Check the full FAQ →