I phone acoustic amplifier

thingiverse

This device is a compact acoustic amplifier designed for any device that fits within a 2.8x7 inch box. The unit features a slip lip at its bottom edge, allowing phones to rest securely and preventing them from sliding out. For easy installation, it comes with holes for hanging or can be simply propped up on a desk. Note: You may need to rotate the object before printing or use support structures, as they are not built in. If you have any suggestions or changes you'd like to see made, please share them in the comments below.