,,,I do work on other projects. I had always wanted a pair of drive-in movie speakers just to use as stereo speakers in the garage. I came across this one (says Simplex). I thought I might just give it a good speaker and a long cord. But soon it transpired into this.
I got the Bluetooth receiver but then added the volume control with a built-in amplifier. This project had a lot of fun intricate machine work. Not to mention intricate soldering (15w pin soldering pencil). It can charge off of my phone charger. The sound is clear. It uses a 4.8v battery pack.
The screws were very small. M2X.4 for the switch, 2-56 to mount Bluetooth board and 4-40 screws for the speakers. The mounting board is black plexiglass. The taps were so small that i just used my fingers to twist the taps through the plastic.
