Optimal Performance: Designed specifically for BT58 microphones, these replacement cores your equipment delivers clear, high-quality sound Construction: Crafted from robust materials, these microphone cores withstand regular use and are built to last, making them ideal for both studio and live settings Easy to Install: Each core is engineered for a hassle-free installation, allowing you to quickly replace your old microphone capsule without needing professional help Versatile Use: Perfect for upgrading your existing microphone or replacing a worn-out capsule, these cores maintain the integrity of your sound in any performance or recording scenario Due to different batches, there may be differences in product appearance and printed text, which not affect use Color: As Shown Material: Plastic+Rubber Package Contents: 2 x Dynamic Microphone Core Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.