BANRIA DIY Bluetooth-Compatible Speaker Kit, DIY FM Radio Soldering Practice Kit USB Home Sound Amplifier Remote Control Soldering Project with Digital Display & LED Lights for Indoor/Outdoor Use

This is an interesting little project. It’s sold as a Bluetooth speaker, MP3 player, FM radio, auxiliary audio amplifier kit. But that part isn’t the “kit” part at all. The real brains of the operation are very complex, so that part comes prefabricated. The part that you build is the audio bargraph display, as well as the acrylic box that houses it all. It’s really two independent circuits in one, with you building half, and leaving the other to factory assembly line. The construction guide is excellent. Every step has photographs to keep you going. My 11-year-old daughter and I built it over the course of a few evenings. If you just sit down and get to work by yourself, it will probably only take a couple of hours. A little hint for assembling the acrylic box is to use a small magnet to hold the nuts but the edge in location while you turn the screw with the other hand. It is powered by USB and has no internal battery. If you need it to be portable, you can use a USB battery bank, but test yours with it a bit in advance. I have several, and some work great, but this speaker doesn’t draw enough continual power to keep some of my other ones powered up. They think that they can shut down because nothing needs much power. Pairing with Bluetooth could not be easier. Put it in Bluetooth mode, and you’ll see it on your phone. It’s a cinch. It’s not going to rival a Bose, but it’s plenty loud and the sound quality is not lacking. Load some music onto a MicroSD card (the manual says TF card, but MiscroSD works just great) and it just starts playing. Same with a USB thumb drive. The FM radio took a little figuring out. Put it into FM mode, and hit the “Play/Pause” button. That will get it scanning through the whole FM band, remembering stations that were strong enough to hear. Let it finish. After that, you can use the Volume Up/Down buttons to switch between the stations that it found. Hold the volume buttons to change the volume. After that, use the remote to shut it off, not the power switch on the back, and it will keep the scanned stations in memory for quick use next time. Now here’s the neat part: if you shut it off with the remote, the amplifier/Bluetooth/MP3 unit shuts down and the screen goes dark. But the bargraph circuit that you built is still powered, and here’s the kicker: the bargraph is not connected to the player circuit to know what to display. It has a microphone that just listens to the speakers, processes it, and displays the lights on the bargraph. So, when you power the main unit off with the remote, the microphone and bargraph is still listening, so it flashes and lights when people talk, or when the phone rings, or whatever. It’s a lot of fun. If you don’t want that to work, just flip the power switch on the back, but we’re having a ball with this! You will too!

Great kit well organized good directions to follow but when you get to soldering in the 12 LEDs pink blue green, you will need to use Google translate the three packages of four led’s are in Chinese language but we can figure this out. Just use Google translate. All good.

Everything in this kit arrived in working order without any missing parts. The design of the main PCB is well thought out, with each pad labeled for its corresponding part. For example let's say i have a 10k ohm resistor to install onto the main board, all i would have to do is look for the pad on the board that is labeled 10k ohm resistor. This is a great kit for beginners, you could actually complete this kit without even understanding how to read a schematic. The online instructions were very clear with step by step instructions and detailed pictures from start to finish. I was impressed with the overall quality of this kit, the plastic shell of the speaker is well designed and all the screw holes/tabs lined up seamlessly. The only challenge I faced during assembly was the push in style power switch. I think the hole for the power switch should be at least 1/16 inch wider, I had to really force it into place and actually cracked the shell around the switch when installing it. I was able to test all the different features of the speaker as well. The AM/FM radio had great reception. I was able to pick up stations over 30 miles from my home. The Bluetooth had great range as well. I was able to still get clear sound when bringing my phone down stairs while the speaker was still upstairs. The aux worked as expected, but I do think it would make a lot more sense for the aux port to be mounted on the back of the speaker instead of the front near the display. This speaker does actually have a front USB port for light duty charging. It doesn't charge fast by any means but still a nice feature to have if you're in a pinch. The sound quality really surprised me, I ran the speaker at nearly full volume for about 30 minutes and had no static or crackling. Overall I would recommend this kit to anyone looking for a quick DIY soldering project. With the instructions and all the components provided you really only need flux, solder, a soldering iron and Phillips head screwdriver to build your own Bluetooth speaker from scratch.

Circuit board was pretty straight forward but the power switch was an issue. Trying to install into the plastic plate and ended up snapping the plate. Waiting to see how well the rhino glue holds. Switch tangs were just too stiff for this flimsy plastic.

This kit was a joy to work on. The assembly instructions were the best, easy to follow guide I've come across. I actually use it at my office. It's been 9 months since I assembled it and it still works fine. Good value for the money. Don't need to purchase an expensive radio when this kit can give me comparable good quality sound, Bluetooth and FM reception. The remote works as intended and is a welcome feature. I did put on a new telescopic radio antenna for improved FM reception. Cool😁 I'm a DIY tech guy and I got this as a new year present to myself.

This didnt come with a fm antenna plus the instruction dont match the item

Donner en cadeau Elle a adoré le faire

Very good, sounds good for a smal radio like that. The only problems I had is that some of the instructions where incorrects, my board was fabricated in 2023, the instruction board was made in 2019, we see it on the plans. It's ok I manage to complete the kit and it is great.

I have built a lot of these circuits, so I can say with confidence that this one was terrible! Had to replace some resistors with my own stock as they did not pass an Ohms test. May connections not as indicated in the manual. The chip board was missing a connection clip, etc.. long story short, just don’t!

Sound quality ok, acrylic box is rather delicate and difficult to assemble. But overall a good learning project.

The kit is complete, but since it is advertised as a teaching tool for beginner electronics, I think the instructions could be better. There is a single page included with the kit which doesn't give much, however there is a QR code that gives better instructions, but not great. For example, since it is an educational item, instructions that include how to read the resistor codes would have been an easy add. Maybe a bit of a blurb on how to get started with soldering, instructions for a true beginner kind of thing. The LED's came labelled in Chinese. You have to do a search for the Chinese symbols for Red, Green and Blue to figure out which is which. The instructions on the QR code site are readable, but it's an imperfect translation to English so a bit clunky. That being said it is a fun kit to get a taste of soldering and electronics, I just think with a bit of investment in documentation it has the potential to be a really great learning tool.