1Mii B06HD+ Hi-Res Bluetooth 5.1 Music Receiver for Home Stereo w/LDAC, Hi-Fi Bluetooth Adapter w/Audiophile DAC aptX HD Volume Control OLED Display, Wireless Audio Adapter for AV Receiver/Amplifier

So far the adapter has been great. Box is well packaged, instructions right on the inside flap of the box. Adapter itself feels sturdy, well built, not flimsy or cheap. Comes with power cord and RCA to 3.5mm adapter cable. Both are pretty short so plan accordingly or buy a longer cable. I bought it to use with the Klipsch ProMedia 2.1 THX "computer speakers" so I didn't need the adapter, just plugged the 3.5mm cable from the speakers into the 3.5mm jack of the Bluetooth adapter. Pairing was super quick and simple, I've paired it to both my desktop and phone, it does indeed play from both sources. I'm guessing you can pair even more devices to it just like any regular Bluetooth although I haven't tried. Sound quality is nice and clear, no static or distortion. The Bluetooth range seems quite good, better than my Galaxy Watch 3 with my phone. I live in a 2400 ft² two story house and I haven't found a corner where it'll lose connection inside the house yet. The 3D function does seem to work, surprisingly. I thought it'd be more or less a gimmick but it does make it sound more surround coming from a 2.1 setup. I'm not an audiophile, so to me it sounds fine. When you turn it on the blue circle turns green, turning it on and off is rather instantaneous.All in all I'm pretty impressed with this Bluetooth adapter, was gonna get the Logitech one for the same price but that thing seems to be old and running Bluetooth 4.0. I can't speak to the longevity of this product but if it lasts a few years then I'd consider this money well spent.

Before purchasing this device, I ordered and tried a different, similar BT transmitted by another manufacturer, one with great reviews. While I was able to use that device with analog RCA outputs to my 1999 vintage Pioneer A/V receiver, I was unable to get any signal from the coax and optical outputs into my receiver. I know the A/V inputs worked, as I was able to use them with an LG 4K TV and other devices.I ordered the B06HD+, connected it up the same way and, again, failed to get any output signal into the receiver. However, the status screen on this device displayed that, by default, the BT receiver was locked on the LDAC codec of the BT chipset. The sampling bitrate for LDAC is 96 kbps, which is beyond the bitrate that can be handled by my 23-year-old receiver.Android mobile devices generally handle BT codecs automatically and will use the best available code (in this case, LDAC) on the connected device by default. There is no easy way to change to another BT codec (such as aptX LL or HD). In order to do so, the user must access the Android Developer Options, which allows access to hidden functions, including switching to other BT codecs. Access to Developer Options varies in different versions of Android, and current releases (such as Android 13) have a toggle in System settings that allows the user to enable them.After accessing that option on my device, I switch to aptX HD as the codec (using a 48 kbps sampling rate) and the signal suddenly worked fine on both the optical and coax outputs into my receiver. I later discovered an app for later Android devices on the Play Store that allows BT codec switching on the fly. I now get a crystal clear optical signal into my Pioneer receiver and the music sounds tremendous.I detailed all this in case other Android device users are experiencing similar problems. Oddly, the device I originally tried did not function the same way, so it's been returned in lieu of the 1Mii B06HD+ receiver.Another tip: the unit has a built-in battery and users can also plug the provided USB power cable into any 5 volt USB adapter for direct power. However, the power to the 1Mii will remain on unless you physically turn it off using the power switch on the unit. There's a workaround for this as well.My Pioneer receiver has a switched electrical outlet on the back that powers down when the receiver is powered off. I plugged the 1Mii into this outlet for power. When I power off the receiver, the 1Mii remains on using the internal battery. After ten minutes or so, if there is no live signal across the 1Mii receiver, it will power off on its own to preserve battery. When I power up the Pioneer receiver, the 1Mii also powers back on. I can do this with the Pioneer's remote control, so I don't need to physically power off the 1Mii after I'm done with it.The reach of the Bluetooth signal is very good, despite the use of an internal antenna. My devices are used in the same room, so those moving their mobiles or other devices around will have to test to see what the range limits are.All-in-all, I'm pleased with the performance of the 1Mii. The analog signal output through the RCA jacks is very clean, but the digital outputs provide a higher level signal, so those are preferable for my use. Hearing crystal clear music through my old A/V receiver from various BT sources is terrific, and the 1Mii does a great job of providing that option.

This offers good sound quality for Bluetooth.The lag between starting, and stopping play seems pretty typical for Bluetooth.Range is good. My phone can connect to it from anywhere I'd listen to the stereo from in the house.It seems to be well built.The directions could use some work, but it's set up to pair with the first two devices you try to pair with it. Getting connected was easy.Being able to use it to add Bluetooth to a boombox is a nice bonus over some of the other Bluetooth receivers out there.There is one drawback for me. I hate the battery level indicator with a passion. This is attached to the receiver in my bedroom so that it's power supply turns on when I turn on the receiver. The size of the battery indicator on the display is so big that it glows way too much for the bedroom. I'm going to have to cover it with something.I knocked off a point for that, but otherwise it's 5 stars.

AS advertised. Came with all needed or desired cables. I used optical for sound to an old but still robust ONKYO receiver, tide to POLK audio Sub woofer and Polk Atrium water proof speakers I have been using for years in a screen porch. Sound is incredible.Samsung 23S for control. Simple fast Bluetooth solid connection with not drop outs. Range is fantastic. Speed is instant changing from song to song on Amazon music. Full functions work. This thing is everything I had been looking for. Truly amazing wish I had know about this long ago.

I initially had bluetooth connectivity problems, but that has been resolved. Not sure exactly how, but it now connects consistently without problems.One thing that seems to have helped is turning off the unit after use, using the power button, and turning it on prior to connecting with bluetooth. If you leave it on all the time, I found it difficult to disconnect the unit from bluetooth. I also may have had some interference from my wireless headset when I was pairing it. It works fine now and sounds beautiful. I wish I had waited a while before I wrote my initial review, just took me a while to get it working properly. I really like the device, sounds great and no more connection problems. I also like the scrolling text showing the song names.