Hey people, I'm playing with a bluetooth boombox that holds 2" full range speakers and a 2.25" passive woofer. Also, you can customize the front panel!!! Let me know if you made one and I'll add here =D On top, there is the button panel and the back holds a usb port, a audio in jack and a battery holder (which I made based on my galaxy s3 battery). I use the cheaper bluetooth APTX device available. You can check more about the electronics at Instructables: www.instructables.com/id/DIY-Supercharged-Bluetooth-Speaker-v20/ Hope you enjoy!! Note: The model takes 15h to print with 40% infill and 0.25. Be sure to check all measurements before run!