MediaCast Auracast TV Transmitter HDMI ARC In, Bluetooth Adapter for Auracast Hearing Aids & Headphones, HDMI ARC & Optical In, Volume Boost

MediaCast supports Bluetooth or Auracast audio transmission from a TV

MediaCast streams TV audio to Auracast hearing aids and headphones

Audikast 4 transmits TV audio to compatible Auracast hearing aids.

MediaCast PC tool for firmware updates and audio broadcast settings

MediaCast volume boost for clearer and louder TV listening

MediaCast connects to modern TVs through HDMI ARC, optical, or AUX

MediaCast | Auracast TV Transmitter HDMI ARC In

Name: MediaCast | Auracast TV Transmitter HDMI ARC In
Brand: Avantree
SKU: BTTC-520
Price: 119.99 USD
Availability: InStock

Auracast TV Transmitter with HDMI ARC

Send TV audio to compatible Auracast hearing aids and listening devices, or to one Bluetooth headphone.

$119.99 $199.99

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Price $119.99

Add-ons & Accessories

Setup & Support

MediaCast | Auracast TV Transmitter HDMI ARC In

~~$199.99~~ $119.99

量：

MediaCast | Auracast TV Transmitter HDMI ARC In

~~$199.99~~ $119.99

Best for

TVs with HDMI ARC/eARC, optical, or 3.5 mm audio output
Compatible Auracast hearing aids, earbuds, headphones, and receivers
One regular Bluetooth headphone or speaker in Bluetooth mode
Hearing aids without Auracast, using a bridge device such as AuraCoil or C83

Not for

Two Bluetooth headphones at the same time
Auracast and Bluetooth modes running together
Soundbar passthrough without an HDMI audio extractor or optical splitter

Check before buying

TV & listener compatibility

Choose your TV connection, then choose Auracast or Bluetooth. MediaCast cannot use both wireless modes at the same time.

HDMI ARC / eARC Works directly Connect MediaCast to the TV's HDMI ARC/eARC port.

Optical / TOSLINK Works directly Use the TV's optical output; select PCM/Stereo if there is no sound.

3.5 mm AUX Works directly Use the TV's headphone or audio output, not an audio input.

Not sure about your hearing aids? Auracast hearing aids connect directly. Other hearing aids can connect through a bridge device such as AuraCoil or C83.

Check hearing aid compatibility

Bluetooth mode supports one headphone. Auracast mode supports multiple compatible listeners. The two modes cannot run together.

Full compatibility detailsOpen

TV input
HDMI ARC / eARC	Supported	Direct wired input from a compatible TV HDMI ARC/eARC port.
Optical / TOSLINK	Supported	Direct wired input. PCM/Stereo output may be required.
3.5 mm AUX	Supported	Direct wired input from a headphone or analog audio output.
Wireless output
Auracast hearing aids	Check model	The exact hearing-aid model must support Auracast broadcast audio.
Non-Auracast hearing aids	Bridge device required	Use a compatible bridge device such as AuraCoil or C83.
Auracast earbuds, headphones, or receivers	Supported	Join the MediaCast Auracast broadcast using the listener device's supported method.
One Bluetooth headphone or speaker	Supported	Use Bluetooth mode for one regular Bluetooth listening device.
Two Bluetooth headphones	Not supported	Bluetooth mode supports one connected listening device.
Auracast and Bluetooth together	Not supported	Select either Auracast mode or Bluetooth mode.
Shared listening
TV speakers plus MediaCast	Depends on TV	Some TVs can keep their speakers on while using an external audio output; check the TV audio settings.
Soundbar plus MediaCast	Accessory required	MediaCast has no audio passthrough. Use HAX06 or a suitable optical splitter.

Hearing aids: Auracast models connect directly. Other hearing aids require a compatible bridge device such as AuraCoil or C83.

Soundbar users: Plan for HAX06 or an optical splitter if the soundbar and MediaCast must receive TV audio together.

Product highlightsTap to open

HDMI ARC for modern TVsConnect directly when the TV has HDMI ARC/eARC but no optical output.
Auracast hearing-aid streamingBroadcast TV audio to compatible Auracast hearing aids and listening devices.
Auracast or BluetoothSwitch modes for Auracast listeners or one regular Bluetooth headphone or speaker.
Volume BoostCalibrate weak TV output for a stronger wireless listening level.
PC tool supportUpdate firmware and customize the broadcast name, password, and QR code where supported.

SpecificationsTap to open

Bluetooth version: Bluetooth 5.4 with Auracast
Auracast codec: LC3
Classic Bluetooth codecs: aptX Adaptive, aptX, SBC
Profiles: Auracast Broadcast, A2DP
TV audio inputs: HDMI ARC, optical/TOSLINK, 3.5 mm AUX
Wireless outputs: Auracast broadcast or one Bluetooth audio connection
Latency: Auracast 50–70 ms; aptX Adaptive 60 ms+; aptX about 120 ms; SBC about 220 ms
Wireless range: Up to 330 ft / 100 m in ideal conditions
Power: DC 5 V / 1 A via USB-C; use a USB charger or TV USB port
Firmware interface: USB-C with DFU support
Dimensions: 9.5 × 9 × 2.5 cm
Weight: 90 g

Works withTap to open

Add-ons

Compatible Auracast products that can receive the MediaCast broadcast.

<tc>Aria Aura</tc> T |ワイヤレス Auracast TV ヘッドフォンCompatible listener

Loop | Auracast Neckband Earbuds with Charging DockCompatible listener

Pebble Aura | Open-Ear Auracast TV EarbudsCompatible listener

Infinity NC | Auracast & ANC Earbuds with AppCompatible listener

Bridge Accessories

Adds an audio path when MediaCast and a soundbar need TV audio at the same time.

HAX06 | Hdmi Arc Audio Extractor PassthroughBridge accessory

Others

Replacement connection and power accessories.

Type C 同期＆充電ケーブルOptional accessory

3.5mmオーディオケーブルOptional accessory

光ケーブルOptional accessory

USB電源アダプターOptional accessory

What's in the boxTap to open

Packaging list pending confirmation.

Frequent Ask QuestionsTap to open

Will MediaCast work with my TV?

Yes if the TV has HDMI ARC/eARC, optical/TOSLINK, or a 3.5 mm audio output. For optical, select PCM/Stereo if there is no sound.

Will it work with my hearing aids?

Auracast hearing aids connect directly after model compatibility is confirmed. Other hearing aids can connect through a compatible bridge device such as AuraCoil or C83.

Can I connect two Bluetooth headphones?

No. Bluetooth mode supports one Bluetooth headphone or speaker.

Can Bluetooth and Auracast run at the same time?

No. Choose either Auracast mode or Bluetooth mode.

Can I keep using my TV speakers?

It depends on the TV. Some TVs can play through their speakers and an external output together; check the TV audio settings.

Can I keep using my soundbar?

MediaCast has no audio passthrough. Use HAX06 or a suitable optical splitter when the soundbar and MediaCast need audio together.

Support Questions

ComparisonTap to open

Choose by need	MediaCast	Audikast 4
TV inputs	HDMI ARC, optical, AUX	Optical, AUX
Auracast listeners	Compatible hearing aids and devices	Compatible hearing aids and devices
Bluetooth listeners	One	One
Auracast + Bluetooth together	No	No
Soundbar passthrough	No; bridge accessory required	No; bridge accessory required
Wireless range	Up to 330 ft / 100 m	Up to 330 ft / 100 m
Best fit	Modern TVs with HDMI ARC	TVs with optical or AUX

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MediaCast | Auracast TV Transmitter HDMI ARC In

Add-on & Accessories:

MediaCast | Auracast TV Transmitter HDMI ARC In

MediaCast | Auracast TV Transmitter HDMI ARC In