ELEGIANT 2-in-1 Bluetooth 5.0 Transmitter Receiver, Dual-link Support aptX HD/aptX LL Built-in Microphone Optical TOSLINK 3.5mm AUX RCA | BTI-066

ELEGIANT 2-in-1 Bluetooth 5.0 Transmitter Receiver, Dual-link Support aptX HD/aptX LL Built-in Microphone Optical TOSLINK 3.5mm AUX RCA | BTI-066

For PC/TV/Home Stereo System
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2-in-1 Transmitter & Receiver: BTI-066 can be used as either transmitter or receiver. In TX mode, connect the BTI-066 to the audio output device to make the TV/computer/iPad stream audio to Bluetooth speakers or headphones. In RX mode, it can stream music from mobile devices to home stereo or wired speakers. Simply upgrade and modernize old audio equipment.

Bluetooth 5.0 Audio Adapter: Built-in CSR8670 chip achieves enhanced Bluetooth 5.0 technology with faster transmission and more stable connection within 66ft working range. 

aptX Low Latency & HD Audio: Achieve end-to-end audio transmission without lip-syncing delay and offer you extraordinarily high definition audio which is better than CDs. Note: aptX-LL requires your receiving headphones/speakers must also support aptX low latency.

Convenient Dual Link Support: Supports simultaneous pairing with 2 Bluetooth headsets/speakers in TX mode, or pairing with 2 mobile devices in RX mode to achieve streaming audio. The built-in microphone allows you to directly click the play/pause button to answer or hang up a call without disconnecting the Bluetooth.

24Hours Long Battery Life: Built-in 600mAh battery provides up to 24-hours non-stop audio after 2.5 hours charging. Auto pairing with the last device makes it easy for repeated use.

Easy to Use: One step to switch TX/RX modes or turn on/off the adapter thanks to the simple 3-button design. Easy access to control music playback or switch music and call modes. Smart LED Indicator clearly shows the pairing status, the numbers of paring devices, and the supported CODEC to keep you informed of the working status at any time. 

Package Includes

BTI-066 Bluetooth Transmitter & Receiver *1
Digital Optical TOSLINK Cable *1
3.5mm Audio Cable *1
3.5mm RCA Cables *1
Micro USB Charging Cable *1
User Manual *1


Bluetooth Chip: CSR8670
Bluetooth Version: Bluetooth 5.0
Battery Capacity: 600mAh
Working Time: TX>22H, RX>18H
Charging Time: About 2.5H
Input Voltage: DC 5V
Working Range: 20m/66ft (Open area without signal interference and obstruction)
Input/Output Connection: SPDIF, 3.5mm AUX/RCA
Audio CODEC (TX) : aptX-HD, aptX-LL, aptX, SBC
Audio CODEC (RX) : aptX-HD, aptX-LL, aptX, SBC, AAC

Important Notes Before Buying

Transmitter Mode: In TX mode, BTI-066 can be plugged into the Audio Output jack on TVs, PC, computers, iPods, AV receiver and other non-Bluetooth audio sources, and paired to Bluetooth headphones/speakers (e.g. Bose, Beats, Sony, Plantronics, AirPods ).

Receiver Mode: In RX mode, BTI-066 can be paired to cellphones, iPad, Echo, Echo Dot or other Bluetooth audio sources, and plugged into wired speakers headphones to stream audio from cellphones to the wired stereos.

Digital optical cable for connection: If you use Optical TOSLINK to connect our transmitter to your TV but there are problems like no sound (like Samsung, Sony TV), please set your TV with following these steps:

1. Enter "Sound Settings"
2. Select "Expert Settings"
3. Set the "Digital Output Audio Format" to "PCM"
Now you can hear the smooth audio.

Please note that there are 2 SPDIF jacks on the top jack of BTI-066: SPDIF IN TX and SPDIF OUT RX. Check the TX/RX connection method and choose the right one!

3.5mm audio cable AUX/RCA connection: If there are problems like no sound, please follow these steps and check:

1. 3.5mm Audio Cable connection: Please change TV audio channel to "Headphones".
2. RCA R/L Audio Cable connection: Please change the audio channel to "external speaker".

Please note that this product cannot be used with hearing aids.

Low Latency Supported?  

Most headphones/speakers are mainly used for music, not for watching TV, and headphones/speakers do not support low latency. In order to avoid lip-sync problems, your headphones/speakers are supposed to support low latency codes. Please contact your device manufacturer to confirm this. Otherwise, the codec will be downgraded to aptX or even SBC, and you may experience significant audio lag. There is no problem with the BTI-066 transmitter.

Musical Instrument? 

The latency of 40ms is still unacceptable for live sound monitoring. Therefore, those who want to use it with electric piano or guitar, beware! Bluetooth technology, even with Low Latency, may not suit your needs. Not recommended for live music (when playing guitar, keyboard, electronic drums, etc.)

Volume Control Not Work? 

In RX mode, the volume control works. You can control the volume and track through BTI-066.
In TX mode, the volume control is only activated in AUX mode. When BTI-066 connected to a TV via a digital optical cable, you cannot adjust the volume via BTI-066. Please use the TV remote control to control the volume.



How to pair the headphone

1. Turn on the Bluetooth headphones and make it in pairing state. 2. Switch the BTI-066 to TX mode and turn it on, it would auto search and pair with your headphones. 3. Plug the BTI-066 into the TV audio output jack and make the right setting.

Why my TV does not sound

Set your TV following these steps: 1. Find "Sound Output Speakers" in Settings. 2. Then select "External speakers". 3. Find "Audio Format". 4. Select "PCM". Paired your headphones with ELEGIANT BTI-066.

Low Latency Supported?

Most headphones are primarily for music, not support low latency. Please check if your headphones support the aptX Low Latency codec. If not, the codec would be aptX/SBC/AAC

Customer Reviews
4.8 / 5.0
80 reviews
View All >
Great right out of the Box
Works and sounds great
October 19, 2021


Average rating:
4.8 / 5.0
Great right out of the Box
Works and sounds great
October 19, 2021
If my TV would work with this product.
I liked that I was able to CONNECT the device to my TV, but I am still working out on the Bluetooth part of it. It will pare but no sound, but it will connect and work.
September 30, 2021
W. Scott
Excellent with my iPods
The unit was simple to setup and connect to my TV. Found that plugging into the TV headphone jack worked a little bit better than the optical connection.Had a problem this week with the unit connecting with my AirPods so contacted tech support. Only one word describes my experience; OUTSTANDING. Quick, knowledgeable support by Rie solved my problem.I recommend this product because what??s not to like about: Easy setup Good Bluetooth range Volume control Tech support Price
September 29, 2021
an amazing product for the price
The company has made the unit easy to install. The unit comes with red/white audio, the 3 couple for video and an optical cable. A quick response from the company explained that for our TV that to make the unit operational we had to use the optical cable even though the unit is blue tooth for an audio output. The other cables were not used. We had a similar issue with a sound bar which also needed an optical cable but the sound bar did not come with an optical cable.The company is very responsive to buyers of the unit which is levels above any other electronics company with whom we have dealt. 100% recommend
September 26, 2021
Thomas V Green
Third try of this type of device was the charm!
This was the third device I tried! The first two worked but although they stated stereo sound the output was only mono. I use this with my JVC RX-5060 stereo amplifier to listen to music from my computer, sound from my TV and my PS4 through my Jabra Elite 45h bluetooth headphones. I gave 1 star for the Volume Control because there isn't one on the device. Luckily there is on the headphones and I have a remote control for the amp. The sound quality is excellent and the delay is insignificant. I would highly recommend this device!
September 22, 2021
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