Inexpensive Bluetooth Speaker Kit ( 

Thank you very much Martyn. A perfect walkthrough for my kids to follow. Just received delivery of 2 of them along with 2 diy line following robots. Still waiting for a diy radio kit that I ordered as well.

I read on one of the vendors' stores that the 470uF caps go in series with the speakers, to improve the bass response. Mind the polarity.

Thank you for making this I had no clue how to make this and then I found this video, such a lifesaver

That was great fun....thanks, Martyn! I have several different types of these Chinese BT MP3 players now that i build up from incredibly cheap parts and plastic tubes into great sounding players. Thanks!

If you just want a MP3 player with a built in speaker, the Retekess V115 is really quite decent. has a micro SD card. plus it's a radio so if you want to listen to the radio it gets pretty good reception. but you can also use a USB cable or line in for audio as well.

Thank you, Sir.

I built a wired speaker kit from banggood and incorporated a bt unit into it. I also found I had to run it from a plug in supply as it was drawing to much current for a smaller power brick!

Nice one pal - good to see you back!

For some reason my LEDS don’t work at all and I didn’t get a spare capacitor in the box either

Great vid. Cheers from the US. Liked and Subscribed.

A mi me llego todo apretado en una bolsa. Y sobran 2 diodos y un condensador de 470 uf que no aparece en el esquema.

24:37 Конденсаторы 470 uF это фильтры на динамики, ставятся в разрыв цепи хоть "-", хоть "+" контакта.

Hi, thanks for your video. I have everything ready now and everything seems to work fine except for one detail, the sound is so low that you can't hear any sound even at the highest volume. I also felt that the white panel is a bit warm. I don't know why but I got a pair of capacitors 470uF 16V in the package. The capacitor solution do not work for me. What could be the cause?

hey so yeah i want to buy this for my brother but i cant afford it wright now lol but yeah thanks for making this video so i know if i should get this or not lol so god bless and keep on keepin on ill see you in the next video also im a new subscriber

I got and built this last week and it worked great for a couple of day, but nownthe BT does not show up anymore :^(

so yeah just wanted to say this cost me 20 dollars in US witch isnt bad but i rather pay around 12 dollars for something like this lol but yeah i really want to buy this for my brother but i want to put it togeather since thats what i like doing but i dont care about music and he does so it would be good for both of us lol i can build it and he can use it lol well once he gets out of prison that is lol but yeah hill be home in like 2 years lol not to long from now lol and yes i been to prison as well lol its easy now adays lol