Microphone (Uni-directional) 6mm & 9.7mm, solder pads - R-TECH 524621, The R-TECH 524621 (uni-directional) Microphone with solder pads measures 9.7mm x 5mm with an operating voltage of 2V. R-TECH 524621 Microphone (Unidirectional) 9.7mm…View more