Esinkin Bluetooth Receiver Wireless Audio Adapter 4.0（NFC-Enabled） for HD Music Stereo Sound System

Good quality

I have no affiliation with this manufacturer but now I ONLY BUY ESINKIN WIRELES BLUETOOTH RECEIVERS! I have 3 of them in my home at this point and I was initially trying out products from different manufacturers but I kept running into the same issue with the others. The other devices were significantly limiting the volume of the device that they were attached to. I would have the volume turned up and the device was not loud at all. I have not encountered this problem with an Esinkin Bluetooth audio adapter. Save yourself the hassle of making a return and just buy Esinkin first. They have different models to choose from if you are concerned about competing connectivity issues among the devices in your home. Thanks, Esinkin!

This little thing enabled me to connect my Bose radio with my Pandora and I love it! Beautiful sound with my Bose, and no commercials.

11 months later: It started to disconnect and reconnect and play a 4 note 'deedle'. Description on Amazon page says warranty is 24 months and when I contacted seller (Esinkin) they sent a replacement.The problem seems to be the power cube. With a new power cube the problem went away. Testing the voltage of the culprit showed the cube was putting out 4.1 Volts instead of 5.Purchased Nov. 2016: No problems with this. I am using it to pair an Echo Dot with a stereo amp. I put the BT power plug into stereo switched plug so that when the stereo is turned off, the BT receiver loses power as well. Pairing the Echo with the BT was easy in the alexa.amazon.com webapp; I put the Echo right next to the BT Receiver for this. Asking Echo for 'bluetooth' finalized the connection glitchlessly; the Echo output now is heard on the stereo. When I turn the stereo (and thus BT receiver) off, the Echo continues playing on its own speaker. If I then turn the stereo (and BT) on, the Echo searches and finds the BT and automatically connects. Note: this is the only BT receiver in the house. The sound quality is excellent the Echo itself is about 15 feet from the BT with an intervening interior wall. One nit is that it connects to the Echo automatically a while after you ask Echo to disconnect. After a while of disconnection, it automatically connects again.

Easy install into aux port of amplifier/mixer. We power off sound system after each meeting and needed a BlueTooth receiver with good range that would power up in ready to connect state. This Esinkin model A201 works great throughout our meeting hall.

This works very well with my Echo Dot. I am using it at a range of about 15 feet but I have taken the Dot out to the garage and the pairing still worked (range about 25 feet and two walls in the way). The output (and the output from the TV headphone jack) feed into a Behringer Xenyx 502 mixer and then a pair of Mackie MR-5 speakers. I cannot hear any difference between symphonic music from the Echo via Bluetooth and the same music via the Fire TV stick through the TV (I admit that have haven't blind-tested it). There is more detail about the setup in my review of the Echo Dot.Update: I've modified the setup and now have my Echo Dot hardwired into the mixer. I didn't try that sooner because I thought that the speakers would be too close to the Echo Dot for the voice commands to work but there is no problem. This seems to be the best sound. The stereo image is very well-defined. But I still give the Esinkin five stars - the sound is good and there are no flaws in performance like dropouts or inadequate range.

Turned my old stereo receiver into a Bluetooth receiver so I could play my Echo Dot through it while playing music. Works great! And when the receiver is off, my Echo uses its own speaker, but connects automatically when the receiver is on - just what the doctor ordered and installation was a breeze.

All I had to do is hook this up to my receiver/amplifier via the RCA connectors, plug in the power adapter, the blue LED came on and the unit emitted two tones. Next, it was just a matter of selecting Bluetooth on my phone. The phone immediately discovered the Esinkin adapter and paired it. Next, I started up Spotify on my phone, selected "Rock Classics" and to my utter enjoyment the first song to play, through my awesome old school speakers, was "Free Bird". WHAT!!!???? I was in Rock and Roll Heaven. Crank it up DUDE!!!! Indeed I did!!! Awesome little device. Sits flat on top of my receiver/amplifier and has a beautiful futuristic profile. Highly recommend! It's also great to play all my iTunes songs from my laptop to my stereo. This is the way music is meant to be heard. Forget puny laptop speakers and tiny earbuds. It's all about the BASS baby! "Party on Wayne", "Party on Garth!!