Smartphone Amplifier - 5dB Increase!

Smartphone Amplifier Example video:https://youtube.com/shorts/n5BMhF5QhGY?feature=share Features:Classic horn design inspired by vintage Gramophones.15mm deep phone slot that should fit most phones, in their cases.No assembly required.No internal support needed.Around a 5dB volume/amplitude increase. Greatly improved sound projection.Healthy low-Mid frequency boost.Strong and sturdy design.Great for students. No batteries or wires required. A true passive amplifier. Usage:Simply place your phone into the phone slot!There is some side to side tolerance so that you can line your speaker grill up between the internal phone stops. You can look into the front of the speaker whilst the phone is in place to align the this correctly. Thanks for looking! Please rate and review you printing experience :)