TP-Link NFC-Enabled Bluetooth 4.1 Receiver, Wireless Audio Adapter Streaming Music from Echo Smart Phone Tablet PC to Home Car Stereo Sound System (HA100)

I purchased this as a replacement for an Elecom LBT-PAR500 which didn't make it back from a recent hire car trip. One of the things I noticed when using a cheap replacement(Kanex AirBlue Portable Bluetooth Music Receiver) is that the amplification of music from my phone to my car's AUX jack was non-existent, forcing me to turn up the car's volume to near max to have anything approaching a loud volume.The result was that the noise and imperfections were amplified too, and overall the sound quality was awful. I also hated having to constantly switch both it and my old Elecom on and off to get it to pair with my phone.To be honest I'd normally associate TP-Link with a low end ADSL router, so I was a little hesitant to try this product, but I am actually seriously impressed:1) Pairs automatically with my phone as soon as I start the car, every time without exception2) The built in amplifier chip is definitely noticeable, the volume is great and I'm not getting any local feedback on the AUX port3) Sound quality is greatI haven't tested the NFC functionality, but pairing was super simple so no real need. If I'm being critical I would have loved a version with AptX codec support, but I understand that licensing this would nearly double the price of the product.This really is a fantastic product for the price.

I have a long commute and my car does not naturally have bluetooth. The other day, I was pulling my mpow unit out of the auxiliary port on my car and it broke. Not wanting to be without my bluetooth, I started hunting on Amazon for a new unit.Now, my old mpow unit was good, but it had two issues which I despised:1. Had to be powered on manually by holding the button for a few seconds2. Had a "feedback" noise when charging and playing audio at the same timeI hated having to always turn it on whenever you got back into the car, and then having to manually pair it on my phone most of the time. But once it was on, it worked pretty well. Unless, of course, it was charging. In sync with the acceleration in my car, it would produce a subtle (but audible) feedback noise while driving. As my speed increased, so did the noise.Fast-forward to today, when I received this unit. At first, it did not want to work. I plugged it into my aux port and charger. It turned on when my car turned on, but I could not connect to it on my phone. I read what "NFC" was, and decided I did not want that. So I restarted my phone. I turned the car back on, and this time it connected.I then decided to drive around a bit. There was no feedback while I was driving, which was a huge plus for me. Sound quality was great, too.I shut my car off, and the unit turned off automatically. I turned my car back on, and two magical things happened. First, the bluetooth device turned on automatically, as it had been doing. Second, my phone automatically connected to it. No manual touching of the device. No having to tap the bluetooth icon on my phone and pair it manually.So for me, this is an awesome device for several reasons:1. Sound quality is great so far2. Turns on / off automatically3. My phone pairs and connects to the device automatically4. No humming noises or feedback sounds while driving, meaning I can leave the device plugged in and not have to worry about anything

It works great. I bought mine in 2019. No on and off switch, but so what? Other reviewers say it's easy to unplug it, but in fact mine has been plugged in for over 5 years full time. I do believe this is no issue since it clearly is not doing any digital to analog converting until you connect to it with your phone and play your music. If it costs a nickel per year to leave it on powering its little LED light I'd be surprised. So for me it's always ready. In all these years there was one occasion when I couldn't connect to it, and I just unplugged it and plugged it back in, and it hasn't failed for years since. I pay for commercial free YouTube premium, and whatever music I can think of to play from my phone to my old stereo system is always there. It comes with a 3.5 to dual RCA jacks cable for your auxiliary or tape input on your receiver, and that's all I need.The problem I now have is that I want another one as a gift to a friend. But whereas I paid about $22 plus tax, they are now asking about 60 bucks and more all these years later! It's Bluetooth 4.1 and has noticeable lip sync latency if you watch a phone video or connect your television to it. But I don't need to do that. It's making me crazy to think of paying nearly triple, but if you don't mind the price it is likely very much the smallest lightest unit of its kind out there. I'm not sure why that makes much matter however, it certainly doesn't justify the new price in my book!

Works pretty much as I want, with a couple of exceptions.I use this in the car. It powers on automatically when it gets power and automatically connects to my previously paired iPhone. This is ideal for getting in the car, starting it up, and having the phone automatically connect and start playing from the car speakers. When I turn the car off, it disconnects and stops playing just as I would like.The few exceptions to it being the perfect solution are:- It makes a small unobtrusive, but nevertheless present, beep sound whenever the volume is changed.- It only allows pairing with two devices at a time, whereas some- I don't see anyway for it to be renamed.This leaves open the question of whether one can connect to more than one of these devices without unpairing from one before connecting to the second. Some of these mechanisms require this. If anyone knows, I'd be interested in hearing as I am tempted to buy a second for use in my other car.