Abstract: A three-in-one drum includes a drum chamber, a drum skin and pressing rings. A beating tray is vertically and adjustably disposed in the drum chamber and covered with a cushion. The bottom of the beating tray has a microphone vibrator connected to a loudspeaker box. When the adjusting rod is rotated clockwise, the beating tray rises and the cushion is close to the drum skin. The drum skin does not ground when being beaten, this is the mute drum function. An beating trigger connected with an electronic sound source sends electronic signal to perform the electric drum function. The microphone vibrator amplifies the audio frequency signal to perform the audio amplification function. When the adjusting rod is rotated counter clockwise, the beating tray is lowered and the cushion is located away from the drum skin which sounds when being beaten to perform the raw sound drum function.

Abstract: The invention relates to a drumhead for volume-reduced and electronic drums, comprising an elastic mesh, fixed on a drumframe and elastic colloidal coatings integrally formed on the upper and lower surfaces of the elastic mesh. The colloidal coating covers at least a part of the surfaces of the elastic mesh. The elastic mesh uses one of polyester mesh, nylon mesh, cotton-fiber and mesh. Said elastic colloidal coating is round and located at the center of the drum, and has an area of 5%-100% of the entire drumhead surface. By injecting the colloid on the mesh according to the invention, the strength, elasticity and wear resistance of the elastic mesh body can be improved, and the lifetime of the drumhead can be extended up to five times. The invention reduces the sound of the drumstick by 20 dB.