Phone Amplifier Passive Speaker

This phone speaker amplifier features a modern and functional design, engineered to enhance sound without the need for electronic components.   External dimensions: 160x55x80 mm (6.30x2.17x3.15 inches) Internal slot for phone: 20x90 mm (0.79x3.54 inches) The product supports most smartphones currently available on the market. This design is fully optimized and requires no supports, making it efficient and easy to print while maintaining excellent sound amplification. For best results, use my profile with optimized settings. 4