Audikast 4 Bluetooth & Auracast TV Transmitter. For Auracast hearing aids, headphones and speakers.

Audikast 4 | Bluetooth & Auracast TV Transmitter

Audikast 4 Bluetooth & Auracast TV Transmitter. For Auracast hearing aids, headphones and speakers. Unboxing Video

Audikast 4 | Bluetooth & Auracast TV Transmitter

Name: Audikast 4 | Bluetooth & Auracast TV Transmitter
Brand: Avantree
SKU: BTTC-480
Price: 79.99 USD
Availability: InStock

For Bluetooth or Auracast headphones and speakers

$79.99

Subtotal: $79.99

Quantity:

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2-Year Warranty
60-Day Returns
Bulk Discounts
Fast Shipping

Price $79.99

Product Highlights

FOR Auracast And Classic Bluetooth Users – Two modes: Auracast for Auracast headphones, speakers, and only the hearing aids shown in the images. Classic Bluetooth for headphones or speakers (only one device at a time). For hearing aids, we recommend Audikast 4 HA.
Watch TV At Your Own Volume – Connect to your TV via optical or AUX output for private listening through headphones or hearing devices. Some TVs without optical or AUX output are not supported.
Stable And Future-Ready Connection – Built on Bluetooth 5.4 with Auracast support and USB-C firmware updates, designed to stay compatible as Auracast devices continue to evolve.
NOT FOR Non-Auracast Hearing Aids – Auracast works only with Auracast-enabled hearing aids. Please check the compatible hearing aid models shown in the images before purchase.
IMPORTANT NOTE – Classic Bluetooth Limitation – In classic Bluetooth mode, only one headphone or speaker can be connected at a time. Multi-listener audio sharing is available only in Auracast mode.

Specifications

Compatible Devices

What's in the Box

• Audikast 4 Transmitter
• Type C data & power cable
• 3.5mm audio cable
• Optical audio cable

Add-ons & Accessories

Firmware Updates

Setup & Support

Audikast 4 | Bluetooth & Auracast TV Transmitter

$79.99

Quantity:

Audikast 4 | Bluetooth & Auracast TV Transmitter

$79.99

Best for

TVs with Optical/TOSLINK or 3.5 mm AUX audio output
Compatible Auracast hearing aids, earbuds, headphones, and receivers
One regular Bluetooth headphone or speaker

Check before buying

HDMI-only TVs without an HDMI audio extractor
Two classic Bluetooth headphones at the same time
Soundbar passthrough from the transmitter

Before buying

TV & listener compatibility

Check the TV audio output, listener technology, and simultaneous-speaker needs before purchase.

Optical / TOSLINK Works directly Set the TV to PCM/Stereo.

3.5 mm AUX Works directly Use the TV headphone or audio output.

HDMI-only TV Extractor required No direct HDMI input.

Not sure about your setup? Confirm the exact TV ports and listener compatibility before buying.

Check compatibility

For Optical/TOSLINK connections, set the TV digital audio format to PCM or Stereo unless the product page says otherwise.

View detailed compatibilityTap to open

TV input
Optical / TOSLINK	Supported	Use PCM/Stereo digital audio output.
3.5 mm AUX	Supported	Connect to the TV audio output.
Wireless output
Compatible Auracast receivers	Supported	Auracast can broadcast to multiple compatible listeners.
One classic Bluetooth headphone or speaker	Supported	Use classic Bluetooth mode.
Two classic Bluetooth headphones	Not supported	Classic Bluetooth mode supports one listener.
Shared listening
Soundbar passthrough	Not supported	Use an external splitter or extractor if required.

Product highlightsTap to open

Auracast or BluetoothChoose Auracast broadcasting or one classic Bluetooth listener.
Multi-listener AuracastBroadcast to multiple compatible Auracast hearing aids and receivers.
Long Auracast rangeReach up to 100 m / 330 ft in ideal open conditions.
Firmware update supportUSB-C DFU support allows verified firmware updates.

SpecificationsTap to open

Bluetooth version: Bluetooth 5.4 with Auracast
TV inputs: Optical/TOSLINK, 3.5 mm AUX
Wireless outputs: Auracast broadcast or one classic Bluetooth listener
Bluetooth range: Up to 30 m / 100 ft
Auracast range: Up to 100 m / 330 ft
Codecs: aptX Adaptive, aptX HD, aptX, SBC, LC3
Firmware: USB-C DFU supported
SKU: BTTC-480
Package Dimensions: 11 × 20 × 2.4 cm
Packaged Weight: 0.153 kg
Net Weight: 0.038 kg
Accessories Weight: 0.066 kg
Carton Dimensions: 58.5 × 41.6 × 24 cm
Carton Gross Weight: 14.7 kg
Units per Carton: 88

Works withTap to open

Add-ons

Compatible listening devices for this transmitter.

AuraBand | Auracast Personal ReceiverCompatible listener

FitLock Aura | Secure-Fit Sports EarbudsCompatible listener

Bridge Accessories

Use only when the TV or listener needs another connection path.

AuraCoil | Auracast Personal ReceiverBridge accessory

HAX06 | Hdmi Arc Audio Extractor PassthroughBridge accessory

Others

Optional replacement connection and power accessories.

What's in the boxTap to open

Packaging list pending confirmation.

Frequent Ask QuestionsTap to open

Will Audikast 4 work with my TV?

It connects directly to Optical/TOSLINK or 3.5 mm AUX audio outputs. An HDMI-only TV needs a compatible HDMI audio extractor.

How do I join the Auracast broadcast using a QR code?

Use the Avantree Firmware Updater to generate a QR code for the transmitter’s Auracast broadcast. Important: Phonak hearing aids must join by scanning this QR code in myPhonak’s Auracast Assistant. Other compatible phones and hearing-aid apps may scan the code or use their supported broadcast-discovery method. Device and app support may vary. See compatible devices and QR Code details →

Will it work with my hearing aids?

Compatible Auracast hearing aids can join the broadcast directly. Check the exact hearing-aid model before purchase.

Can I use a regular Bluetooth headphone?

Yes. Classic Bluetooth mode supports one compatible Bluetooth headphone or speaker.

Why is there no sound from Optical?

Set the TV digital audio format to PCM or Stereo. Dolby and DTS are not supported.

Can I keep the TV speakers or soundbar on?

It depends on the TV. Some TVs support simultaneous speaker and Optical/AUX output. Audikast 4 has no built-in soundbar passthrough, so a splitter or HDMI audio extractor may be required.

Support Questions

ComparisonTap to open

Buying difference	Audikast 4	MediaCast
TV inputs	Optical, AUX	HDMI ARC, Optical, AUX
Auracast	Yes	Yes
Classic Bluetooth	One listener	One listener
HDMI ARC	No	Yes
Best fit	Optical or AUX TVs	Modern HDMI ARC TVs

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Frequently Asked Questions

How can I connect my hearing aids? How can I use this with my soundbar? Can I Use TV Speakers & Headphones / Hearing Aids Together? My hearing aids/headphones is not working. How to fix? What does the flashing light mean? Hearing Aid Volume Too High or Too Low?