Drum Speaker Bass Speaker Drum Accessories Bass Hole Protection Drum PartsSpecial Design: Tuning Port Designed for Bass Drums.Great Feature: Develop Your Low End Frequencies. Rubber drum ring: the rubber drum ring is tightly aligned with the surface of the drum, which can be adjusted by adjusting the tightness of the drum skin. Drum body: Made of environmentally friendly ABS, durable and not easily deformed. This product transforms the drum into a reverb bass speaker, improves the bass sound progression, concentrates the air in the drum cavity and compresses it inside, making the bass part stronger. The effect is adjustable, just adjust the drum drum can be tensioned. Hole protection: uncover the white protective paper and stick the glue side on the drum skin, and cut it along the inner diameter of the circle to avoid damage to the drum skin and solve unnecessary loss. Usage: First, attach the protective sticker to the hole to the bottom skin of the drum, and then draw along the circle of the inner diameter. When the full circle is drawn, the rubber part of the speaker is locked and the drum skin is installed. Name: Drum Subwoofer/Bass Amp DrumColor: Blue+Black Material: ABS Size: Bottom Diameter 17cm Package Content: 1 * Bass Drum AmplifierOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item n