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

Got this to use with my tablet. It allows me to use Bluetooth to connect to my home speaker which doesn’t have Bluetooth. Works great with RCA and 3.5 mm headphone jack.

Works as adveritised. I have this connected to my home amplifier using the included rca to 3.5 mm cable to listen to my computer audio library (in other room with a distance of 20 feet and 2 walls). No problem pairing, or connecting. Audio quality is excellent and as good as direct corded connection to amp. Once this unit powers on, it is ready to connect each time once initial pairing was performed with sending device. It will work and keep pairing with multiple devices but of course not simultaneously. I also use 1 or 2 phones to connect to amp. If you plug this into the switched outlets on the back of your amp, this unit will power up with amp and be ready to connect. I reserved writing a review until after few months use. All good on purchase. All good now.

Works as described. Must be plugged in as it has no onboard battery. Quick connection to iPhone with a pleasant confirmation tone that doesn’t wake up the neighbors. Great way to get more life out of a sound bar that has a non-functioning bluetooth. Now I can listen to my playlist on great speakers with no hassle.

I was hoping to control our older but excellent Bose system speakers with subwoofer without manually plugging my smart phone via AUX jack. This did the job. Simply plug it in, connect via bluetooth. Couldn't be easier! I'm so happy to be able to lay in bed and control the music wirelessly from my phone. AC adapter is about 5 feet long which was plenty for our needs. A couple of small issues: * You have to leave the speakers powered on - so even when music is turned off, there's a barely audible buzz in the air. This is probably a limitation of our speakers, not the controller but something to consider! * Bright status light - we had this on our dresser and you wouldn't believe how much ambient light the status light put out. I don't know why all such devices don't use red or orange lights as they can disrupt sleep patterns and I find them generally annoying. I put dark tape over it, problem solved. * Soft rubber top with large NFC top looks nice when you get it but collects dust and looks grimy. None of these issues have anything to do with the function, which was pretty great and reliable (for a bluetooth device). I'm totally happy I got it.

Works Great! It receives bluetooth signal from my iPhone and plays the music on my old Bose stereo with great high and low range with good volume. Sounds wonderful! 👍👍

Simple to setup. Easy connection. No issues.

This unit works great with my echo dot and my yamaha RX v673 receiver. My 2nd zone speakers are built into my kitchen and dining room. This bluetooth receiver is plugged into the aux1 connectors on the back of my receiver...which by the way is in the basement, one floor down from my echo dot, AND horizontally 25 feet away. I have to say, I'm impressed. I was skeptical the echo dot and this bluetooth receiver would stay connected at this distance with the stone fireplace obstructing it. I should note that we otherwise have a very open floor plan so the signal may be working around the fireplace...still it's on a separate floor. The bluetooth audio sounds great, the pairing with the echo went smoothly and it actually stays connected to the echo dot. I've yet to hear a "reconnect tone" like what has been reported in reviews of other competing products. If you've got an echo dot and you want to use your receiver with it this one works well with it. With the audio coming out of the ceiling now, it feels like Alexa is sort of "built in" to my house now.

I have this plugged into an amplifier to stream Bluetooth in a medium sized apartment. I have used four different devices, and they sync easily. I have to manually disconnect a device in order to connect to another one. The one that is in the memory will reconnect automatically when it is turned on and within range. This unit always needs to be plugged in. One thing that stands out to me is the pad underneath, which hasn't left marks and stuck to things after awhile like some electronics do. It beeps to let you know your device has connected. The blue LED light is small enough that you can put it behind something and it won't annoy anyone, even at night. The range is more than 20' (very reliable) and less than 30' (don't move) through 3 or more walls, and my particular unit seems to like it when I use my own RCA jacks instead of the 1/8" plug which was included. You can experiment with placement. Moving it over slightly could make a bigger difference than you might think in some applications. Sound quality is notable for a 20 dollar device, and consistent within its intended range. I was hoping that it wouldn't cut quality as you get farther away like some are designed to do, and that seems to be the case for me. For reference, you would be able to discern which of your recordings are better than others and which formats are "lossless" or compressed. It's not as detailed as my CD player, but might be comparable to a cheaper one. When I am streaming Bluetooth, chances are that nobody cares. I haven't noticed a noise floor coming through the unit, or any other sort of distortion. Designed in California, Made in China

Product meet my expectations. Would be good if it had a button to disconnect the current paired device. This would make it easier to connect a new device. Currently you have to open each device individually to find out which is paired. Can be a problem in a home where everyone has an iPad and iPhone

Easy to set up. Requires source (phone or iPad) to be close by or it jumps around a bit. If source is nearby it’s faultless.

Remarkably simple and easy to use.

Connected this unit via RCA to my old NAD 3020B amp with B&W DM220 speakers. Really quick and easy to setup and pair with my iPhone. Sound quality is surprisingly good. Only downside I've noticed so far is when I'm carrying the phone and walk out of range of the receiver, the phone disconnects from the receiver (as expected), however it doesn't reconnect automatically when I move back in range. But at this price, you can't have all the bells and whistles. Good value for money!

Easy set up and worked straight away without issue, where as previously more expensive Comisol adapter failed completely. Happy customer!