IT CAN STAND THE RAIN!for outdoor intercoms, toll booths and SOS telephones The PZM11 LL WR is a professional weather-resistant boundary layer microphone designed for fast-food restaurants, outdoor intercoms, toll booths, SOS telephones, theme-park security and the like. A plastic membrane inside the microphone protects the mic capsule from water damage. The PZM11 LL WR will work during and after rainfall. If water freezes on the membrane, the mic s frequency response will change but will return to normal when the ice melts and the membrane dries. The PZM11 LL WR is powered by 12V - 24V DC, provides line-level output and can be plugged directly into a VCR line input without the need for a costly mic preamp.