The Voice Optimized M200s are high end, high definition, high output midrange drivers capable of matching high performance DD subwoofers in complete systems made to get loud and play all day. The integration of high fidelity and professional audio characteristics allow these VO speakers to saturate every air molecule along an extended wave path with crisp, clean and ultra smooth midrange frequency sound. Made with motorcycles, boats and UTVs in mind, these speakers will overcome the harsh conditions and environmental noise you'll encounter on road and off.