Audikast 4

1. Before You Start

⚠ Sends audio to Auracast devices.

Supports hearing aids for multi-play. See Compatible Devices.

Default mode: Classic Bluetooth. To switch to Hearing Aid mode: Press the [Auracast button] ◼ once. The LED blinks orange every 5 seconds. If it does not, hold the button for 3 seconds.

2. What's in the Box

Inside your package, you'll find:

• Audikast 4 Transmitter (Image: A small black rectangular audio transmitter with an antenna, buttons for power, volume up/down, and an Auracast/Bluetooth indicator.)
• Type C power cable (Image: A USB Type-C cable.)
• Optical audio cable (Image: A black audio cable with TOSLINK connectors on both ends.)
• AUX 3.5mm audio cable (Image: A black audio cable with 3.5mm jack connectors on both ends.)

3. Buttons & Indicators

Device Diagram: A small black rectangular audio transmitter with an antenna. It has a power button, volume up (+) and down (-) buttons, and an indicator light. The text "Audio Signal" is visible.

To enter Auracast mode: Press the [Auracast button] ◼ once. Hold the [Auracast button] ◼ for 3 seconds to switch between modes:

• Hearing Aid mode: The LED blinks orange every 5 seconds.
• Auracast Standard mode: The LED stays orange.

To enter Bluetooth mode: Press the [Bluetooth button] ◼ once.

4. Compatible Devices

4.1 Auracast-Enabled

Connect via your hearing aid's companion app, or an Auracast Assistant (e.g., Samsung S24).

Compatible devices include:

• ReSound Nexia
• ReSound Vivia
• ReSound Savi
• Beltone Commence
• Beltone Envision
• Beltone Serene
• GN Danalogic Extend
• Jabra Enhance Pro 20
• Jabra Enhance Pro 30
• ...

4.2 Auracast-Ready

Requires an Auracast Assistant (e.g., Samsung S24) to connect:

• Starkey Edge AI
• ...

Note: Device support is updated regularly. Check the FAQ for the latest list.

4.3 Choose How to Use

With App: (Image: Apple App Store icon)

With Samsung Phone: (Image: A Samsung smartphone.)

5. Use With App

1. Connect Audikast 4 to power.
2. Turn it ON.
3. Press the [Auracast button] ◼ once. The Auracast LED blinks orange every 5 seconds. If not, hold the button for 3 seconds.
4. On your hearing aid's app, navigate to LE Audio/Auracast.
5. Tap "Audikast 4_XXXX" (where XXXX is the device's unique identifier), then enter the password. (Diagram: A representation of the Audikast 4 device showing "Name: Avantree Audikast 4_XXXX" and "Passcode: XXXXXXXX" with an arrow pointing to "Passcode".)

6. Use With Samsung Phone

6.1 Power Audikast 4

Find Samsung Phone Alternatives.

1. Connect Audikast 4 to power.
2. Turn it ON.
3. Press the [Auracast button] ◼ once. The Auracast LED blinks orange every 5 seconds. If not, hold the button for 3 seconds.

6.2 Connect Hearing Aids

1. Turn on Bluetooth on your phone, then select your hearing aids.
2. Tap the settings icon ⚙ and turn on LE Audio.
3. Tap "Listen to Auracast broadcast" > "Audikast 4_XXXX", then enter the password. (Screenshot: A mobile phone screen showing Bluetooth settings with options like "Calls", "Audio", "LE Audio", and "Listen to Auracast broadcast".)

7. Connect With TV

Select audio source connection:

Optical: (Image: Icon representing an optical audio connection.) (Recommended)

AUX: (Image: Icon representing a 3.5mm AUX audio connection.)

7.1 Connect the Optical Cable

Plug in the optical audio cable to connect Audikast 4 and your TV.

Connection Diagram: Left image shows a hand plugging a purple optical audio cable into the Audikast 4. Right image shows the rear panel of a TV with various ports, highlighting the "OPTICAL DIGITAL AUDIO OUT" port where the cable is connected.

For DTS patents, see http://patents.dts.com.

7.2 Set TV Audio Output

1. Go to Settings > Sound > Sound Output, then select Optical.
2. Set output audio to PCM to avoid no sound.
3. Play a video. The audio signal should stay solid.

TV Settings Screenshot: Shows "Expert Settings" with options like "Balance", "Equaliser", "HDMI-eARC Mode", "Digital Output Audio For..." with a dropdown showing "PCM", "Auto", "Pass-through". The description explains the "Pass-through" option.

See audio setup by brand.

7.3 Connect the AUX Cable

Plug in the AUX audio cable to connect Audikast 4 and your TV.

Connection Diagram: Left image shows a hand plugging a blue AUX audio cable into the Audikast 4. Right image shows the rear panel of a TV with various ports, highlighting the "AUDIO OUT L/MONO" port where the cable is connected.

7.4 Set Up TV Audio

1. Go to Settings > Sound > Sound Output, then select Headphones.
2. Play a video. The audio signal should stay solid.

TV Settings Screenshot: Shows "Sound" menu with "Sound Output" selected as "Headphones". Other options include "Sound Mode", "Wi-Fi Speaker Surround Setup", and "Expert Settings".

See audio setup by brand.

8. Advanced Features

8.1 Auracast Standard Setup

Auracast audio devices like Avantree Infinity and HomeBuddy support both Auracast modes.

For better sound, switch to Auracast Standard mode:

Press and hold the [Auracast button] ◼ for 3 seconds. The LED stays orange.

Need help? Contact Avantree support to set it up.

8.2 Bluetooth Setup

1. Disable phone Bluetooth, then enter pairing mode on your headphones.
2. Plug in Audikast 4 and turn it ON.
3. Press the [Bluetooth button] ◼ once. The LED blinks red & blue. If it does not pair, hold the [Bluetooth button] ◼ for 2 seconds. Once connected, the LED stays blue.

Image: A hand holding the Audikast 4, and a pair of wireless earbuds in their charging case.

8.3 Reset Bluetooth Pairing

1. Plug in Audikast 4 and turn it ON.
2. Press and hold the [Volume +] and [Volume -] buttons simultaneously for 5 seconds.
3. All LEDs stay on for 2 seconds. The Bluetooth LED then blinks blue every 5 seconds. This action clears all previous pairings and enters pairing mode.

Image: Hands pressing the volume up and down buttons on the Audikast 4.

9. Common Errors & Fixes

• Connection failed? Ensure your hearing aids are compatible. Check the FAQ for the latest list.
• TV Audio Signal Valid? The audio signal must be solid. If flashing:
  • Check all cables are secure.
  • For Optical connection: Set TV audio to PCM.
  • For AUX connection: Set TV audio to Headphones.
• Still no sound? Make sure Audikast 4 is in Hearing Aid mode.

Find more troubleshooting tips and FAQs at Avantree Support.

10. Register Your Product

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11. Live Agent Help

Avantree will respond within 1 business day.

Quick support options:

• ✉ Email: support@avantree.com
• 📞 Schedule callback
• 📥 Submit a ticket
• 💬 Live Chat

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Regulatory Compliance

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device.

Conformité Canadienne

L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : 1) L'appareil ne doit pas produire de brouillage; 2) L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.

Cet émetteur ne doit pas être Co-placé ou ne fonctionnant en même temps qu'aucune autre antenne ou émetteur. Cet équipement devrait être installé et actionné avec une distance minimum de 20 centimètres entre le radiateur et votre corps.