TOOGOO(R) 18 Pieces 9.5mm Dia MIC Capsule Electret Condenser Microphones Product Name : Electret Condenser Microphone Each Size : 9.5 x 4.5 mm / 0.37" x 0.18" (D*H) Color : Silver Tone, Black Net Weight : 13g Package Content : 18 x Electret Condenser Microphone