AvantreeOasis B – Bluetooth Transmitter & Receiver for TV with Dual Link Capabilities, Pass-Through Features, and No AudioDelay, Class 1 Long Range, LED Indicator, Optical AUX RCA

It works great with my speakers and my Bluetooth

I hooked it up and it's been working perfectly! I recommend this item! I previously bought a 1BMiiBO3 and a 1MiiBO6TX that both failed and had to be returned.

Overall, this seems to be a quality product. I paid $70 for this at the time of purchase. There are a number of cheaper options out there, but if you want something that is decent, this is one that I would recommend.Overall it does what it's supposed to do. There is a small amount of noise that this unit produces and can be audible through your speakers, but it is quiet enough that it can be ignored.There seems to be one caveat though, which is there is no optical audio output while the unit is in bypass mode.I reached out to their customer support about this to try and confirm that this is how it is designed or if I perhaps received a defective unit. The person helping me over chat was okay. When I asked her specifically if she could tell me if this was by design or a defect she said she would have to open a ticket with tier 2 tech support. After working with them, they did eventually give me an answer although I don't feel super confident about it.Also the user manual calls the button to change sources an in/out audio selector, but that is all and I am fairly certain that in bypass mode this only selects the input source, so a small knock to them on not including a very high level of detail in the manual.So in summary I would say that this is a "good enough" product with an under-documented user manual and decent customer support behind it. If you're not super picky, then you won't be disappointed.

Initially couldn’t get to work but believe the optical cable bad since got nothing on 2 different TVs of differ brands. Switched to RCA cable and works great. Husband has hearing problems and wanted to use his Bluetooth headphones to listen. Also have used with Bluetooth speaker placed near his chair and that works well also. Can use with 2 headphones/speakers. I can also listen to TV speakers while he uses headphones. Super easy to set up - just plugged in, made one adjustment to TV audio and done. Did not have to turn off TV speakers but will mute if using Bluetooth speaker.

Update 2: RETURNING this. It has become impossible for me to connect my headphones / earphones to the device. When turned on it shows that it is already connected to two devices. This happens every time turn it on.UPDATE 1: Whenever I connect 2 sets of earphones, the sound quality deteriorates tremendously. The sound is intermittent with random cuts and popping noises. Both my earphones have the QCC3040 chip and support the latest aptx codec. When connected to one of the headphones the transmitter also shows that aptx is being used (not aptx-ll). This is probably because it didn't have the latest aptx adaptive. I am using the optical cable to connect with my TV and a 5 V-900 mA power source. The sound quality is fine when only one headphone is connected.Using this device in transmitter mode with Bluetooth headphone. The headphones works great. I am not sure if it can take advantage of of the aptx adaptive codex though.I couldn't find input voltage specifications on the box, so I am using my TV's USB for power (5V 900 mAmp). Seems to work.

I was concerned it may not connect with my Onn wifi/bluetooth speaker (my Micus rx/tx would not pair) but it paired quickly without issue

I had hoped getting a better range with this unit because it's class 1 and read good things from other sources. Seemed equal to another unit I tested in an environment with lot's of obstacles. Found a dual antenna unit more flexible because I could adjust the two antennas at different angles which seemed to give me better results. One thing to mention. when this unit exceeded the range limit it made weird noises and my BT speaker would turn off. With the other unit, my BT speaker would simply stop and reconnect once back in range. Sound quality seemed good and came with cables. Either unit is a cool way to have two speakers to a single source without using an additional app like JBL or TWS (True Wireless Stereo). Compare with MUSICOZY Bluetooth transmitter receiver.