uxcell 8Pcs 52dB Electret Microphone Inserts with PCB Pins Condenser 9x7mm Product Name : Electret Condenser Microphone;Sound Channel Number : Stereo Sensitivity : 52dB;Body Size : 9 x 7mm / 0.35" x 0.28" (D*T) Pin Pitch : 1mm / 0.039";External Material : Alumnium Main Color : Silver Tone, Black, Green;Weight : 7g Package Content : 8x Electret Condenser Microphone