Mini Subwoofer 40mm (1080p HD) by Mark Anthony T. Montero

https://www.youtube.com/watch?v=PcW1JyFGIlE
"THE PIONEER LOGO IS JUST A RECYCLED STICKER"

Mini Subwoofer 25mm (Smallest Subwoofer in the World) by Mark Anthony T. Montero

https://www.youtube.com/watch?v=Zgx5WCDe1qQ
https://www.youtube.com/watch?v=2Xoq2TD3OrY
https://www.youtube.com/watch?v=TmVIDAU_8g4
https://www.youtube.com/watch?v=Yk24j668Dm0
https://www.youtube.com/watch?v=Fsu0_tQyVSk&t=19s
https://www.youtube.com/watch?v=_7bnH03nl5U
https://www.youtube.com/watch?v=K4ZrL4ia9aA&t=11s
"THE MTX LOGO IS JUST A RECYCLED STICKER"