AvantreeOasis Plus 2 - Bluetooth 5.3 Transmitter for TV to Wireless Headphones/Speaker, Compatible with Optical & AUX Output TVs, with Remote Volume Control, aptX-Adaptive, Soundbar Passthrough

Intent:Watch TV both with headset and existing sound bar simultaneously.My Setup:Avantree aptX HD Transmitter/Receiver (device being reviewed)Avantree [2020 New] aptX-HD 24 Bit Hi-Fi Bluetooth 5.0 Active Noise Cancelling HeadphonesExisting Vizio TV with optical audio outputExisting Vizio sound bar w/ Bluetooth subwooferSetup: Fairly simple to connect the Avantree Tx/Rx to the optical audio output of the TV and, using the Tx/ Bypass mode (switch on the right side of unit), connect the sound bar to the Avantree Tx/Rx. Selected Low Latency priority mode using the switch on the left side. Power provided by USB connection from the TV. Easy on. Simple to pair with both headsets, (Holding Tx button for 2 sec puts the unit in pairing mode, then put the desired headset in pairing mode and Voila!) - voice prompt confirms connection (and the voice can be turned off/on as it could become annoying after awhile but is useful inn the early setup phase.) Device remembers and recognizes each headset as it is turned on and within range. For my situation, the range seems quite adequate. Can roam around the entire house without dropping. Avantree Tx is centrally located in the living room. Tried the furthest reaches of the basement without issue - at least 40-50 ft away with wooden studded walls/floors.Pros: Easy setup/pairing, Bypass mode works fine to allow both sound bar and headsets. No lip sync delay when used in conjunction with compatible headset. Also, customer support is very good. Initially had an issue with a different headset that was causing an issue and not allowing Low Latency mode. Once I paired the device with an appropriate headset, everything was great.Cons: Given my setup, when both headset and soundbar are used, there is a slight echo (time delay between the two devices) Do not notice any lip sync delay with either headset or sound bar when used individually but when used together there is a slight reverb. I suspect that this is due to my older model sound bar which is not "low latency". Not terribly bothersome for me but something to consider.

This is one of those rare products which just works the way you want it to. First time, every time. The manual which comes with it very clearly explains how to set it up, simplifying what could be complicated. It informs you to properly configure things which could be otherwise easily be overlooked. Everything connected easily and worked well on the first attempt. Pairing it with a variety of different bluetooth headphones was a snap. It was all so nice. If only all products worked this nicely.In addition to the clear user manual and easy setup, the device has lots of connection options. Yet they've somehow presented it all in an easy to figure out front panel. And it shows you what is going on. No guessing if the device paired in SBC mode or aptx LL. It is clearly shown on the front panel. Want to change the audio input from the aux jack to the optical input? You simply tap the AUX/OPT switch on the front panel. And then it displays which is selected. Again, no guessing. Which do you prefer, aptx LL or aptx HD? Rather than letting the devices decide which to utilize, they provide a simple slide switch appropriately labeled for you to select which connection option to use. And then it shows you on the front panel which they actually connected in. Again, no guessing! Someone really took the time to make what could be very complicated and present it to the user in an easy to use manner. So, so nice! In the future, I will be looking to Avantree for other products. I hope they are all done this well.I am not affiliated with Avantree in any way. I am not a formal Amazon reviewer. Look at some of my other reviews. They range from highly critical to highly complimentary, as in this case. I'm just a regular guy who buys various things from Amazon. This is my honest review.

I purchased his device years ago because I live in an apartment and I generally listen to my music and TV with headphones as not to disturb my neighbors. This transmitter / receiver worked well for five years, but I had to get a new one when it had trouble pairing. Unfortunately while this was the best transmitter/ receiver five years ago, now there are better options, simply because you have to pair your devices blind with this. Because of this I returned the second one I purchased (in 2023).Today, there are just too many Bluetooth devices that will: pair with this device instead of your headphones, or cause interference when you try to pair. So if you live in a house without a lot of Bluetooth devices and you are far from your neighbors, this might work for you. However, there are similarly priced options on Amazon that allow you to select the device you wish to pair. A more detailed review follows.My item came packaged in card box with an outer sleeve displaying the item an brand. Included were the transmitter /receiver, an optical cable, a 1/8” male-male stereo cable, a usb power cable and the instructions. A 120V (wall plug) to USB adaptor was not included. Avantree justifies this as reducing waste and recommends you plug the device directly into you TV. The justification, to reduce waste, while common today is non-sense and ridiculous.Set up is fairly straightforward. The TV audio out connects on the audio in side and your stereo (or what ever device you normally send audio to) connects on the audio out side. I should note that while the device supports both optical audio and a more traditional 1/8” stereo cable, you can’t cross these in bypass mode. i.e., if you use the optical cable for input, the optical cable has to be used for output for bypass to work.Pairing devices to the transmitter can be difficult. When switched to transmitter mode the device automatically will pair with the last device(s) or enter pairing mode. You can also hold the pairing button for a few seconds to enter pairing mode. As mentioned earlier, in either case, the device will latch on to the strongest signal and pair with that. It doesn’t matter if that signal is your headphones or your neighbor’s smart speaker, because pairing is blind. The second “B” channel is even more difficult to pair because wi-if signals interfere on that band. In fact the only way i could get something paired on the B channel was to take the device to my car, drive far away and pair my headphones away from any interference.Once set up the device has three modes, transmitter/ bypass, off/bypass and receiver. In transmitter mode you can both transmit and have music go to your stereo. In the off mode, the device is unpowered but sound will go to your stereo.There are two sound modes, low latency and high fidelity. In the low latency mode, lag is minimized sacrificing some sound quality. In the high definition mode, audio quality is prioritized at the expense of some lag. The former mode requires headphones that can support low latency. Either way sound quality is fine and there is minimal lag.Again, while I was happy with my purchase five years ago, today the technology/ features of this device are outdated. Blind Bluetooth pairing just isn’t a good option today and for that reason alone I can’t give it five stars, even if the blind pairing is part of the design. I’ll rate this for four stars, for the quality of the device sound and low latency. I’m deducting a star primary because of blind pairing and a lack of a usb to wall adaptor to power the device.