Skip to guide
PDF Guide
DE

Interactive user guide

Opera Setup Guide

TV headphone setup

Connect by Optical or AUX, then listen through the included wireless headphones.

Use the included Opera transmitter. Your headphones are pre-paired.

Start SetupFix a problem
Opera headphones and transmitter charging baseClear dialogueUp to 35 hours

Step 1 of 4 · Cable

Connect your TV

Find an audio OUT port on your TV. Choose one cable below.

HDMI ARC portOnly HDMI ARC / eARC?Use HAX06 Converter
Using an AV receiver or TV box?

AV receiver: connect its headphone output to Opera AUX IN. A 6.35-to-3.5 mm adapter may be needed; speaker playback may stop.

TV box: its audio output can feed Opera, but you will only hear content played by that box.

Optical port occupied: see soundbar passthrough.

Opera has no HDMI input. For an HDMI-only TV, use a compatible HDMI ARC-to-Optical extractor such as HAX06, then select OPT on Opera and PCM/Stereo on the TV. The extractor needs its own setup.

Not sure? Take a photo of your TV ports.

Contact Support →

Connect the Optical cable

Watch: connect Opera using Optical
Open video in a new tab ↗
  1. Remove the clear protective caps from both cable ends.
  2. TV: plug into OPTICAL / DIGITAL AUDIO OUT.
  3. Opera transmitter: plug into Optical port in Input From TV.
  4. Set the transmitter input switch to OPT.

Ready: Both square plugs are fully inserted and the input switch points to OPT.

Next: power on the devices →

Connect the AUX cable

Watch: connect Opera using AUX
Open video in a new tab ↗
  1. TV: plug into HEADPHONES / AUDIO OUT.
  2. Opera transmitter: plug into AUX port in Input From TV.
  3. Set the transmitter input switch to AUX.
  4. Raise the TV volume to a normal level.

Ready: Both round plugs are fully inserted and the input switch points to AUX.

Next: power on the devices →

Step 2 of 4 · Power

Power on the transmitter and headphones

Watch: power on and connect OperaOpen video in a new tab ↗
  1. Connect the supplied USB-C power cable to the Opera transmitter and a working 5 V USB wall power adapter.
  2. Slide the transmitter and headphone power switches to ON. Keep both devices close together.
  3. Wait for the LEDs on both devices to turn solid blue.
Connected? Both LEDs are solid blue. Set the TV sound next →

Connected does not mean TV audio is ready; finish the TV settings.

No light? Reseat both USB cable ends and try another working wall power adapter. Lights flash but never connect?
First use or headphones will not turn on?

Place the headphones on the powered charging dock and align the contacts. The dock indicator is red while charging (orange on some versions). When the headphones can turn on, continue setup.

Watch: charge Opera on the dock
Open video in a new tab ↗
Full charging help →

Step 3 of 4 · TV sound

TV sound settings

Choose your cable in Step 1 to see the matching TV settings.

Next: listen to your TV →

Step 4 of 4 · Listen

Listen to your TV

After completing the TV sound settings:

  1. Play a TV program with speaking voices.
  2. Put on the headphones. Press + or − to adjust volume slowly.
  3. Check that you hear the TV through the headphones.
✓
Success: solid blue light + TV sound.
No soundCan't connect

Daily use

Adjust volume

  1. Adjust headphone volumePress or hold + / −. Start low and raise slowly.
  2. Check TV volume for AUXRaise the TV’s headphone / analog output volume if adjustable. Optical volume may be fixed.
  3. Choose clearer speechPress EQ once to switch between Balanced and Clear Voice. Keep the setting that makes dialogue easier to follow.
  4. Check MuteIf the mute indicator is orange, move the Mute/Unmute switch to unmute.

Check: speech is audible at a comfortable level. If still too quiet, open Not loud enough. Opera has no VOL Boost switch.

Independent Bluetooth use

Use with a phone or PC

Turn off the Opera transmitter first.

  1. Turn the transmitter OFFTurn off Bluetooth on a previously connected TV or nearby device if it keeps reconnecting.
  2. Hold the headphone switch in PAIRWith Opera ON, hold PAIR for 3 seconds until red and blue flash.
  3. Select Avantree AS90COpen phone, tablet or PC Bluetooth settings and select Avantree AS90C.
  4. Play audioSolid blue means connected. Confirm sound in Opera. If silent, select AS90C as the device audio output and check mute and volume.

Daily use

Charge the headphones

Use the powered dock or the headphones’ USB-C charging port.

Place Opera on the powered dock

  • Connect the dock to a working USB wall power adapter.
  • Align the headphone charging contacts with the dock contacts.
  • Check the transmitter charging indicator: red means charging; it turns off when complete. Some hardware versions use orange while charging and green when full.

Not charging? Reseat the headphones so the contacts touch, check dock power, or connect USB-C directly. For USB-C charging, the headphone LED stays red while charging and turns off when full.

Battery reference

Up to 35 hours of playtime. Actual time varies with volume and use.

Daily use

Use a soundbar too

Match the input and output cable.

Optical in → Optical out
AUX in → AUX out

  1. Get headphone sound using Optical or AUX.
  2. Connect the matching Output To Speaker port to the soundbar.
  3. Select that input on the soundbar and play TV audio.

HDMI soundbar passthrough is not supported. Check an extractor setup with Support →

Share TV audio

Add a second pair of headphones

Start with Opera connected: both LEDs solid blue.

  1. Keep the transmitter ON.
    Turn the TV and Opera headphones OFF.
  2. Put the second headphones in pairing mode.
    Use Bluetooth headphones and keep them close to the transmitter.
  3. Hold the transmitter switch in PAIR.
    Release when red and blue flash. Wait for solid blue.
  4. Restart all three devices.
    Turn them OFF, then ON in this order:
    Transmitter → Opera headphones → second pair.

Play TV audio. Check that both pairs have sound.

Only one pair plays?

Press that pair’s play button, or briefly slide and release the transmitter PAIR switch. Wait 5–10 seconds.

Audio delay depends on the headphones used.

More pairing help →

Quick fixes

Fix a problem

More quick fixes