Bluetooth 5.1 Aux Adapter Receiver & Transmitter Rechargeable for Airpods Headphones Speaker, 3.5mm Aux Audio Jack Adapter for Airplane Treadmill ...

I bought this for my projector (has a very small speaker built in) that didnt have bluetooth or anything wireless but has an aux cable. I plugged this adapter to it then paired it to my bluetooth speaker to give it wireless audio. It works perfectly. I'm amazed how well this works.

This is really cool for turning a non Bluetooth device into a wireless transmitter or receiver. I use this with my Phillips open back headset, that came with a wired cable to plug into my devices. This allows me to use my phone and listen to these headphones wireless. I've had other devices similar to this over the years, but this is a game changer because it also adds a microphone. So now I can use these headphones as a wireless headset, and listen to music, and also take phone calls. There is also a button that allows you to play/pause videos or music. It really makes your headphones into a wireless headset. The sound quality when watching videos or listening to music is great, and doesn't sound any different than using the cable. Volume is good, and there isn't much lag at all, if any. The only sound issue is when using it as a microphone for calls. It's not bad, it just sounds like ypur speaker phone. I had my phone on speaker, talking to my wife, and then switched to Bluetooth to use the headset and she couldn't tell any difference at all, she didn't know I had switched. She could hear me just fine, but she could also hear the kids in the background. So this isn't really good if your in a loud place, but it's perfectly fine if your in a relatively quiet space. She said I was coming thru very clear and had no problems understanding me. I could hear her just as good as when I used the headset with my line in mic cable. Out of all the devices like this that I have used (5 brands over 6 or 7 years), this is the best.

I have a Bluetooth transmitter from Sunitec, and I want to share about how it differs from this model. 1. This one works. The biggest difference is that this one does what it is supposed to do well. With the Sunitec I heard static noise anytime I changed a track or handled the transmitter. This one has worked clearly and responsively without issue. 2. Its got great range. I could stand rooms away and the audio still came through. Equal to the other model. 3. Its tiny, but the battery life is shorter. This unit is smaller than the Sunitec, but also has 8 hours of battery versus 35. Great for domestic flights, but not so much for international travel. At least it recharges in 1.5 hours while youre dozing. 4. This one is also a receiver! The Sunitec didnt do that. The receiver function on this works well. 5. Charging: This wont charge with higher-power USB-C cables or adapters, it seems, which is a big bummer. You have to have the low-end USB adapters and cables for it to work. I didnt test whether it will still fully work while plugged in. Also, the Sunitec has four battery indicator lights on it so you have an idea how much battery remains. This one doesnt really tell you. 6. This one has a microphone. Apparently for noise-cancelling during calls. But arent my high-class iPhone or AirPods supposed to be doing that? Maybe it works great if you have an older phone, but to be honest, it just kind of weirds me out that theres a little microphone on here. Not necessary, but great if youre traveling down the road transmitting your old phone to your car audio, I suppose. 7. This one has Bluetooth 5.1. Hey, Im glad its at least in the 5 range. But the Sunitec has Bluetooth 5.3 which is much better not just due to energy efficiency, but because it allows transmitting audio to multiple devices at once. The Sunitec lets two wireless headphones connect to the same audio. 8. Theres no Dual 3.5mm adapter included with this one, which is nice to have for old airplanes. In the end, both models have unique special features, but the one that's going to be with me when I travel is this one, because it actually does the main job well it works properly without occasional static from changing tracks or physical handling.

I have an older high end home stereo unit that I keep in the garage. I had it connected to my Alexa Dot but unfortunately the signal is not always reliable so far away from WiFi router. I had wondered if I could find a Bluetooth receiver that would easily connect to the head unit. Voila I found it here on ZeeBooth! It was easy to pair and so far it lasted a whole day of consistent streaming from my iPhone's music app. I am able to control volume from my phones volume adjustment and of course hit skip easier when a song comes on I do not lke or want to hear. I was also able to keep my phone on the Magsafe Charging station as I was streaming music and kept it fully charged. What a great device. This will also act as a transmitter so if you want to pair it to bluetooth headphones and use while in airplane connected to their media source/sound. Something I will need to try once I am on a trip. For something like that I would probably recommend you use this with an extension cable so you can make sure to not leave it in the plane when you depart. So easy to forget items that are this small. Oh, it has its own USB-C cable so you can easily charge it at days end to keep it juiced and ready.