Auracast & Bluetooth TV Audio Transmitter for Hearing Aids – BT618T Wireless Adapter for Auracast Headphones, HDMI ARC/Optical/3.5mm Aux/Mic Input, Soundbar Passthrough, LC3 & aptX Adaptive HD

• [2-IN-1 AURACAST & BLUETOOTH 5.4] Upgraded Qualcomm QCC3086 chip w/next-gen Auracast technology, broadcasts high-quality audio from your TV, PC or turntable to unlimited Auracast-enabled headphones or hearing aids simultaneously. Perfect for family movie nights, classrooms, conference rooms & assistive listening apps without audio lag and disturbing others. Classic Bluetooth mode delivers a 1-to-1 personal listening experience.
• [PREMIUM AUDIO CODECS FOR ZERO DELAY] Supports both modes to ensure flawless lip-sync. It utilizes next-gen LE Audio LC3 for ultra-low latency in Auracast broadcasting, and supports aptX Adaptive, aptX HD, AAC, and SBC for audio streaming in classic Bluetooth mode, delivering high-resolution wireless audio up to 24-bit/96kHz.
• [SIMULTANEOUS WIRED & WIRELESS BYPASS] Features intelligent wired (AUX/Optical) and wireless (Bluetooth/Auracast) toslink pass-through. You can output audio to a wired living room soundbar while simultaneously streaming or broadcasting to Auracast-enabled headphones or hearing aids. Perfect for family TV time with personalized volume control.
• [ALL-IN-ONE INTERFACES WITH HDMI ARC & MIC] Outperforming older transmitters, the BT618T comes fully equipped with modern HDMI ARC & Mic inputs, alongside Digital Optical (SPDIF) and 3.5mm AUX. Effortlessly connect to 99% of modern Smart TVs, PCs, gaming consoles, without needing clunky converters or audio extractors.
• [100M LONG-RANGE COVERAGE & 3 EQ MODES] Delivers an extended wireless range of up to 100 meters (330 feet) in open areas, ensuring stable, lag-free audio. Perfect for multi-room home listening, house of worship/church services, school classrooms, and live events. It also features 3 custom EQ modes—including Vocal Boost to make speech and sermons crystal clear, alongside Balanced and Bass Boost.
• QUICK START: 1. Start audio playback to activate the BT618T Auracast broadcast first before connecting your Auracast device (unlike traditional Bluetooth: connect first, play later). Your Auracast devices will auto-join. For some hearing aids may need enable Auracast/Broadcast LE Audio in the companion app if required. 2. Auracast function required device support Bluetooth LE Audio (Auracast). 3. If QR code connection is required: Generate a broadcast QR code with an Auracast-enabled Android phone (Android 16 / One UI 8.5)

• Can I connect the BT618T to my TV via HDMI ARC or Optical?

  Yes. The Sunitec BT618T supports HDMI ARC, Digital Optical (SPDIF), 3.5mm AUX, and Mic inputs, making it compatible with most modern Smart TVs, PCs, and gaming consoles without requiring additional converters.

• Can I use a soundbar and wireless headphones at the same time?

  Yes. BT618T supports simultaneous wired &wireless audio output, allowing you to send audio to a wired soundbar via 3.5mm AUX or TOSLINK while also streaming or broadcasting audio to Bluetooth or Auracast headphones or hearing aids at the same time.

• Why is there no audio when using BT618T with the HDMI ARC input?

  Please press the Audio Source Selection button until the LED indicator lights up next to “HDMI ARC.”

• What is the range of the BT618T, and is it suitable for large venues?

  BT618T offers up to 100 m (328 ft) with a clear line of sight, making it best suited for small to medium-sized venues. Coverage may vary in very large venues. It also offers 3 EQ modes – Vocal Boost, Balanced & Bass Boost for customized sound.

• How do I set up the Auracast broadcast mode?

  Start audio playback first to activate the BT618T broadcast, then connect your Auracast device. Your Auracast devices will auto-join. Some hearing aids may require enabling Auracast in their companion app.

Sunitec Audio Transmitter Comparison List

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Bluetooth Version	Class 1, V5.4
Operation Range	Up to 300ft / 100meters (Open area)
Audio Codecs	Classic Bluetooth: SBC,aptX,aptX-Adaptive &aptx-HD; Auracast：LC3
Bluetooth Profiles	A2DP, AVRCP, HFP, HSP, PBAP, SPP, GATT
Auracast Sample Rate Selection	24KHz Orange LED: Works for Auracast Hearing Aids & All Headsets; 48KHz Green LED: Works for Auracast Headphones
Audio Input Port	HDMI ARC, Optical (SPDIF), 3.5mm Aux & Mic Input

Audio Passthrough port	3.5mm Aux & Optical (Toslink) Audio Passthrough
Power Port	USB Type C
Input Voltage / Current	DC 5V / 2A
Power Supply	USB charger or TV USB port
Product Size	15.5 x 11 x 3.7cm (6×4.3×1.46in)
Product Weight	180g / 0.4lb

• Can I connect the BT618T to my TV via HDMI ARC or Optical?

  Yes. The Sunitec BT618T supports HDMI ARC, Digital Optical (SPDIF), 3.5mm AUX, and Mic inputs, making it compatible with most modern Smart TVs, PCs, and gaming consoles without requiring additional converters.

• Can I use a soundbar and wireless headphones at the same time?

  Yes. BT618T supports simultaneous wired &wireless audio output, allowing you to send audio to a wired soundbar via 3.5mm AUX or TOSLINK while also streaming or broadcasting audio to Bluetooth or Auracast headphones or hearing aids at the same time.

• Why is there no audio when using BT618T with the HDMI ARC input?

  Please press the Audio Source Selection button until the LED indicator lights up next to “HDMI ARC.”

• What is the range of the BT618T, and is it suitable for large venues?

  BT618T offers up to 100 m (328 ft) with a clear line of sight, making it best suited for small to medium-sized venues. Coverage may vary in very large venues. It also offers 3 EQ modes – Vocal Boost, Balanced & Bass Boost for customized sound.

• How do I set up the Auracast broadcast mode?

  Start audio playback first to activate the BT618T broadcast, then connect your Auracast device. Your Auracast devices will auto-join. Some hearing aids may require enabling Auracast in their companion app.

Sunitec Audio Transmitter Comparison List

	Auracast TV Transmitter Add to Cart	Auracast Airplane Adapter Add to Cart	Auracast Adapter for PC	BT Headset for PC Calls Add to Cart
Customer Reviews	4.2 out of 5 stars4	3.8 out of 5 stars17	3.8 out of 5 stars14	4.4 out of 5 stars14
Price	$129.96$129.96	$49.99$49.99	$28.49$28.49	$47.99$47.99
Bluetooth Version	Class 1, V4 + Auracast	Class 2, V3 + Auracast	Class 1, V4 + Auracast	Class 2, V3
Classic Bluetooth Connection	Single Devices	Dual connection	Dual connection	N/A
Auracast Hearing Aids 24KHZ	Unlimited connection	Unlimited connection	Not works with Hearing Aids	N/A
Auracast Headphones 48KHz	Unlimited connection	Unlimited connection	Unlimited connection	N/A
Supported Audio Codecs	LC3,aptX Adaptive &HD,AAC,SBC	LC3,aptX Adaptive &HD,AAC,SBC	LC3,aptX Adaptive &HD,AAC,SBC	aptX & aptX Low Latency
Recommended For	Mid-venues, Church, Events	Church, Classes,Events,Flights	Marketplace tour, PS5 Gaming	Drivers,Truckers & PC Calls