Connect to the case micActivate and reconnect the set.
INTERACTIVE USER GUIDE · ACUEAR PEBBLE 2 / PHA-126M-2
Hear conversations more clearly.
Wear the open-ear headphones.
The case becomes your remote microphone.
FIRST-TIME SETUP
Activate the headphones.
Do these four steps once.
First, remove both protective films.They cover the charging contacts.
Leaving them on prevents activation.
Leaving them on prevents activation.
- Remove both protective films.Check the metal contacts.
- Put both headphones in the case.Seat each one fully.
- Close the lid.Wait 5 seconds.
- Open the lid. Remove both headphones.They connect to the case mic automatically.
Success: You hear the sound picked up by the case.
No sound? Repeat steps 2–4.
Prefer to watch?
Choose the action you need.
Wear the headphonesFollow the curve of your ear.
Charge the setSee the correct charging position.
HEARING ASSIST MODE
Put the case near the speaker.
The microphone is inside the case.
NOISY · ONE TO ONE
Give the case to the speaker.
Ask them to hold it near their mouth.
Within 40 cm / 16 in.
DRIVE-THRU · ONE TO ONE
Point the case at the worker.
Hold it safely toward the window.
Closer is clearer.
MEETING · SEVERAL SPEAKERS
Place the case on their table.
Face it toward the speakers.
Keep speakers within 1.5 m / 5 ft.Keep the case and headphones within 15 m / 50 ft.At 20 m / 66 ft—or through walls—sound may cut out.
Next: choose a listening mode →
CHOOSE A MODE
What do you want to hear?
Choose one. Its instructions will open immediately.
Hear the case microphone
- Open the case. Remove both headphones.They connect automatically.
- Choose an environment.Normal: quiet rooms.
Noisy: loud places; stay within 40 cm. - Put the case near the speaker.The case—not the headphones—picks up speech.
Success: Speech near the case sounds clear.
Connect to a phone, tablet, or TV
- Turn off the case mic.Hold its power button for 6 seconds.
A red light appears briefly. - Look for red and blue flashes.The headphones are ready to pair.
- Open Bluetooth settings.Select the Pebble 2 headphones.
Bluetooth step 1Enter pairing mode.
Bluetooth step 2Finish the connection.
Return to Hearing Assist: Put both headphones in the case.
Close the lid, then reopen it.
ADJUST VOLUME
Change it one level at a time.
Use the buttons on either headphone while wearing it.
- Wear the headphones.Volume only changes while they are being worn.
- Press + or − once.Do not hold the button.
- Repeat slowly, one press at a time.Wait for the level to change before pressing again. Choose from 16 levels.
Success: Each press changes one level.
Hear a tone? You reached minimum or maximum volume.
FIX A PROBLEM
What is happening?
Open the symptom that matches what you see or hear.
No sound from the case mic
Do this:
- Remove both protective films.
- Put both headphones in the case.
- Close the lid for 5 seconds.
- Open it. Remove both headphones.
Expected: You hear sound from the case.
If not, open the reset steps below.
Sound cuts out
Do this:
- Stay within 15 m / 50 ft.
- Move away from walls, metal, and interference.
- Move the case closer to the speaker.
Expected: Steady speech without dropouts.
Bluetooth cannot find the headphones
- Hold the case power button for 6 seconds.
- Wait for red and blue flashes.
- Turn off Bluetooth on previously connected devices.
- Scan again.
Expected: Pebble 2 appears in the device list.
Volume does not change
- Wear the headphones.
- Press + or − once. Do not hold.
- Repeat separate presses.
- Listen for the end tone.
Reset the case mic and headphones
- Open the case. Hold the case power button for 3 seconds until its LED flashes red and blue.
- Double-press the case power button. Solid pink for 2 seconds means reset complete.
- Remove both headphones. While their LEDs flash red and blue, hold + and − together on either headphone for 5 seconds. Both show solid pink for 2 seconds.
- Return both headphones to the case and close the lid. Open it again to reconnect automatically.
This clears saved Bluetooth pairing information.
REFERENCE
Buttons, modes, charging.
Case microphone
- Power
- Hold 6 sec: on/off
- Reset
- Hold 3 sec, then double-press
- Environment
- Normal / Noisy
- Mic pickup
- Omnidirectional
Headphones
- + / −
- Single-press: volume
- + and −
- Hold 5 sec: reset
- Volume
- 16 levels; end tones
- Mono use
- Either side works alone
Power & range
- Charging
- About 2.5 hours
- Hearing mode
- About 10 hours
- Bluetooth mode
- About 18 hours
- Stable target
- About 15 m / 50 ft or closer
STILL NEED HELP?
Get the right help for AcuEar Pebble 2.
Select AcuEar Pebble 2 / PHA-126M-2. Include the mode, LED pattern, distance, and what happened after closing and reopening the case.
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Submit an AcuEar Pebble 2 support ticket
Add photos or screenshots if needed. The form routes your question to the product team.
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