ZK-1001B Bluetooth Amplifier Board,100W Mono Channel Amp Board with TWS Pairing Function,DC 7-24V, Bluetooth/USB and AUX Inputs, Audio Amp Board for Home DIY Wireless Speakers, Password Free

Not what I needed but came perfect worked like advertised

I used this little mono Bluetooth chip amp to replace a 912/913 MHz receiver board in an old, but expensive, Shaper Image, rock speaker that was missing its transmitter. The rock enclosure still looks great. It's very convincing, waterproof, and also made of heavy-duty fiberglass so I wanted to fix it. This conversion kept it from the garbage dump, and it sounds louder and better than the lousy 912MHz wireless connection. It's not exactly Hi-fi, but it's great for outdoor ambient sound and can get quite loud with the 12v DC adapter and directly connected to our 24v landscape transformer. Bluetooth setup was easy on my Android Pixel phone. Worth every penny!

Amps worked good until one just quit connecting to the other one day. Tried contacting the seller and no response. There is no way to control bass or treble and the app doesn’t support this model amp to do so. Other than the connectivity and distortion when turned all the way up the connect to your phone seamlessly but just don’t connect to each other.

I used this in a hard case portable boom box and was able to link two of them together to have a stereo setup. Really loud with a 6.5" speaker.

This set of two Daakro ZK-1001B Bluetooth Amplifier Boards is a kit you assemble. That is not clear in the description. The circuit boards are assembled and you put them together with some tiny little screws and standoffs. If you have fat fingers, it is not that easy. It does come with extra parts so if you lose some, no biggy, because you won't find them.There are no instructions but I was able to find an assembly and user's guide online. The instructions are pretty good. It will play from the Aux inputs with priority. The Bluetooth pairs and the instructions for pairing the two together for stereo work, although it may swap left and right. I did not try the USB input as that makes little sense when you can plug it into only one amp.The sound is OK, not great. There are no bass or treble controls, so the source has to have an EQ. It does play pretty loud on a 24V supply. They do get warm.

I'm using this in my DIY virtual pinball machine to give power to a single 10" subwoofer. It has just enough power that it gives the "thump" needed during action sequences. It has bluetooth, but since I'm daisy chaining amps, and controls together I used the aux-in to eliminate any and all latency. The size and functionality are what drew me to ordering, and am so glad I found this item.

Use your name can speaker box works. Good range could be a little better. Kind of difficult figuring out how to make them pair could use a little improvement.

Amplifier just stopped working after 3 days of using the Bluetooth functionality. I have one as I bought the 2 pack this time I will skip using the Bluetooth and only use the aux input and see how it goes.