Bluetooth-Compatible Speaker Electronic Kit, Small Rechargeable Speaker Soldering Project Kits with Colorful LED Lights, Solder Kit for Learning and Teaching Electronic

This is the second GeekLJT project kit I bought for my grandson. The prior one, the Smart Car was fun and assembled well; I gave it 5 stars because mostly the instructions were correct, my 15-yr old grandson enjoyed assembling it (with guidance) and it worked well when complete. This project, I am disappointed with. Yes, once assembled it operated properly and could be blue toothed from his phone, but the sound is mediocre as expected for a tiny speaker in a tiny box. We bought it for the assembly experience, not the final product. My grandson enjoyed it and is pleased, but I would not say it is a project for a 12-yr old, unless s/he are very advanced.My displeasure with the project involves the assembly instructions and the incorrect parts that we were sent. The first thing you want to do on a project like this is to check the parts against the inventory list. That was challenging since for one of the main parts, copper pillars, there was no listing of the number of parts, nor the fact that not all the copper pillars were the same. There was also no listing on the number and types of screws. Most of the pillars are female, threaded at both ends, but two that were provided as shown in the instructions had a male thread at one end (see photo) and both of those parts were too short for their intended use in Step 8. We had to use other longer pillars, female threaded at both ends, to replace them. We only had those other pillars since I had a second kit that I scavenged parts from and then returned to Amazon after we completed the first kit. I had the second kit since the first kit was missing two key parts (see next paragraph). I was unable to contact GeekLJT since neither the instruction manual, Amazon, nor a web search could reveal a web address or phone number for GeekLJT. They hide well. Amazon, who is fortunately easy to deal with, sent me a second kit.In addition to the pillar problem mentioned above, our kit failed to have two of the longer (17-mm long) pillars that are needed for the assembly of the acrylic battery cover to secure the batteries in Step 12. Fortunately, the second kit I ordered did have those longer pillars.Other difficulties for a teenager who is just learning electronics assembly are:• Step 3 – you either need a multimeter to measure two resistors to select the correct ones for installation at two different locations on the assembly board, or go online to learn how to read the color-bar code on resistors.• Step 9 – it is a pity that the main circuit board in this step is fully assembled as soldering in place even a few of these components would have been added fun.• Step 20 – this can be a challenging step since the method of assembly requires placing a machine screw through a nut that is loosely held in place in openings in the six plexiglass panels (see photo).Another issue to consider is that the kit costs about $23, but you then need to spend another $18 for the special rechargeable batteries that are required. I wanted to use simple AA batteries, but that reason that is not feasible is how difficult it would be to disassemble the acrylic box to access and replace them. A better design would have made battery replacement easy and standard batteries could have been used.In summary, this was a fun project for my grandson. The lack of quality control on providing parts and instructions was disappointing. And the design of the kit could have been improved to substantially reduce its cost. You may enjoy this project for your 15-yr old, but be aware going in of the pitfalls mentioned above. The Smart Car is a better purchase but perhaps not as useful an end product.

The instructions are decent but it was missing a the 2 “copper posts” so I have to improvise to finish it

My 10yo son loved spending a little nerd time with daddy. Frankly this is a perfect little project to get their feet wet. Be advised the batteries needed are uncommon. If you live outside of a big city order then when you order this kit.

The instructions say rechargeable batteries are included but my kit did not. I cannot complete the build.

Enjoyable build with great sounds, my son enjoyed assembling. Don't forget batteries!

Although the sound quality isn't the most amazing thing you've ever heard, it's a very nice little soldering project and I've been using it more often than planned. Can't beat it for the cost if you're into fun projects that you may be able to use.

This has a modern steam punk appearance.Acceptable sound quality. It is absolutely fun to put together something like this...and the kit is of high enough quality to enjoy afterwards.

Put this together today as a fun project when the weather kept me indoors. You will need your own soldering irn and solder but it’s pretty straightforward to assemble and I got it working without and difficulty. Don’t heat the soldering iron too hot, just enough to melt the solder.