Yarryuter Drum Enhancer Port Insert Enhancement Hole Bottom Microphone Voice Amplifier Kick Booster

To make the part more powerful and the resulting effect adjustable, just adjust the tightness of the eardrum skin. Usage/selling points: Made of eco-friendly ABS, it is and not prone to deformation. The rubber drum ring has a well-balanced tension and relaxation. This product converts the drum into a reflex speaker, enhancing the audio advancement. It concentrates the air inside the drum cavity and generates a compression effect within it. Usage method: First, stick the hole opening protective film on the drum skin of the bottom drum. Cut along the inner diameter circle to make a complete circle. Then, secure the rubber part of the loudspeaker onto the drum skin and the installation is complete.