Audikast 4 Setup Guide

TASKChoose the first available option below.

1. Check the TV labels

   Use an OUT port, never an IN port.

2. Choose Optical first

   Use OPTICAL or DIGITAL AUDIO OUT when available.

   

   →

   

3. No Optical? Use AUX

   Use HEADPHONES, AUX OUT or AUDIO OUT.

   

   →

   

4. Otherwise use an adapter

   RCA: use an RCA-to-3.5 mm adapter.
   HDMI ARC/eARC: use the Avantree HAX06 HDMI ARC adapter ↗.

✓DONEYou have chosen one TV audio output.

IF NOTSend Support a clear photo of all TV ports with the TV brand and model.

TASKConnect the cable chosen in Step 01.

1. Power on

   Connect USB-C power, then slide the switch to ON.
2. Connect Optical

   Use the pink square-ended cable: TV OPTICAL OUT → Audikast 4 OPTICAL.

   
3. Or connect AUX

   Use the blue round-ended cable: TV HEADPHONES / AUDIO OUT → Audikast 4 AUX.

   

✓DONEAudikast 4 is on and connected to the TV.

IF NOTRecheck that both ends are fully inserted and the TV port is labelled OUT.

TASKSet the TV's Optical audio format to PCM.

1. Open Sound settings

   On the TV remote, open Settings → Sound.

2. Choose Optical output

   Select Optical, External Speaker or Audio System.

3. Choose PCM

   Set Digital Audio Format to PCM or Stereo.

   Open the TV PCM guide→Want TV speakers on too?→

✓DONEThe TV output is Optical and the format is PCM or Stereo.

IF NOTOpen the brand-by-brand PCM guide for the exact TV menu path.

TASKSelect your listening device below.

1. Auracast device

   Use the right Auracast button.

   Auracast setup · Step 05→
2. Classic Bluetooth headphones

   Use the left Bluetooth button.

   Bluetooth setup · Step 06→

✓DONEYou have opened the setup path for your listening device.

IF NOTCheck whether your hearing aids or headphones support Auracast.

TASKStart broadcasting, then join from your hearing aids or headphones.

1. Start the broadcast

   Short-press the right Auracast button.

2. Choose the device mode

   Hearing aids: hearing-aid light solid white. Auracast headphones: hold the button until the headphone light is solid orange.

3. Check the audio signal

   Play TV audio. The center Audio Signal light should be solid white.

4. Join the broadcast

   On your hearing aids or headphones, open its Auracast Assistant or App and select Audikast 4.

✓DONEYour Auracast device plays the TV audio.

IF NOTConfirm the center Audio Signal light is solid white, then search again in the device App.

TASKPut Audikast 4 and the headphones into pairing mode.

1. Start Audikast pairing

   Press the left Bluetooth button until the light flashes red and blue quickly.

2. Start headphone pairing

   Put the Bluetooth headphones into pairing mode and keep them within 1 m.

   Headphone pairing helpChoose brand

   AirPods / AirPods ProAirPods MaxBoseBeatsSonySamsung BudsJBLOther headphones

   Choose a brand to see its pairing steps.

   ← Choose another brand

   AirPods / AirPods Pro

   1. AirPods 1–3 and AirPods Pro 1–2: keep them in the case, open the lid, then hold the rear setup button for about 5 seconds.
   2. AirPods 4 and AirPods Pro 3: keep them in the case, open the lid, then double-tap the front of the case.

   Ready when: the case light flashes white.

   ← Choose another brand

   AirPods Max

   1. Press and hold the noise control button for about 5 seconds.

   Ready when: the status light flashes white.

   ← Choose another brand

   Bose

   1. Turn on the headphones or open the earbud case.
   2. Hold the Bluetooth or power button until the light flashes blue or you hear “Ready to connect.”

   Ready when: the light flashes blue or the voice prompt confirms pairing.

   ← Choose another brand

   Beats

   1. Turn on the headphones.
   2. Hold the system or power button until the indicator flashes.

   Ready when: the indicator flashes for pairing.

   ← Choose another brand

   Sony

   1. With the headphones off, hold the power button for about 5 seconds.
   2. For Sony earbuds, use the case or touch-sensor pairing command for your exact model.

   Ready when: the light flashes blue or you hear “Bluetooth pairing.”

   ← Choose another brand

   Samsung Galaxy Buds

   1. Place both earbuds in the case, close it for 5–6 seconds, then open it.
   2. If pairing does not start, wear both earbuds and touch both touchpads until you hear the pairing sound.

   Ready when: the earbuds announce pairing or show their pairing pattern.

   ← Choose another brand

   JBL

   1. Hold the Bluetooth or power button until the indicator flashes rapidly.
   2. If JBL reconnects to a phone, turn that phone Bluetooth off and try again.

   Ready when: the indicator flashes rapidly.

   ← Choose another brand

   Other headphones

   1. Hold the power, Bluetooth, or main button until the light flashes rapidly.
   2. Check the headphone manual for the exact command if the light does not change.

   Ready when: the headphone shows its documented pairing pattern.

3. Wait for connection

   Wait until the Audikast 4 Bluetooth light stays solid blue.

✓DONEThe Bluetooth light is solid blue and TV audio plays.

IF NOTTurn off Bluetooth on nearby phones, keep the headphones within 1 m, and try again.