A passive speaker that will fit most phones.
It has a hole in the bottom so the phone can be played whilst plugged in.
If you haven't come across one of these before, they amplify your phone sound without the need for electricity, you just place your phone into the top. Great for the bathroom :)
Print with supports touching buildplate, only for the wire hole and the top of the phone hole.
If you would like to sell this, or any of my other designs, you can do so by becoming a member on my profile page, use the code 3DPB25 to get 25% off.
I have an insert for this speaker which improves sound for phones with downward facing speakers that you can download here: https://than.gs/m/1126503