Whether you're looking for a low volume practice setup for your apartment, or an electronic trigger setup for a gig, Evans SoundOff drumheads have you covered. These drumheads are made using a single-ply of a unique mesh material, dramatically reducing the amount of volume a drum produces when struck. For over 60 years, Evans has been an innovator in drumhead manufacturing and design. As the creator of the first synthetic drumhead and other revolutionary products such as EMAD, Hydraulics, and the UV1 series, Evans drumheads are designed with the intent of solving problems for drummers. Regarded for high quality and consistency all Evans drumheads are made in the USA and feature Level 360 Technology., Single-ply, mesh material, Dramatically reduces volume, Can be used with drum triggers, All Evans drum heads are designed, engineered and manufactured in the USA