headphone

Hi, I’m pretty noobish when it comes to audio circuits so I wanted to verify this before I pull the trigger and purchase the parts. I am making a small mic and speaker set up that I can use to record and also play sounds through a custom handset. The entire circuit will be powered and run by...

I throw away the swollen battery of my xiaomi earbuds2 but I wanted to use it without the case battery. It doesent charge without battery, so I connected the battery protection board to the board. It worked, but it makes a loud high pitched noise and kinda concerns me. Is it safe? And how do I...

For all those that enjoy helping newbies this is the post for you. I am relocating my outdoor theater to our backyard using headphones now and ditching the big speakers. I have 8 sets of the Sennheiser HDR175 and want to rig up a way to charge them all while in a simple carrying case. Can...