The WCS-999 Wireless Microphone system from Sony lets you record voices up to 45 meters away depending on environment and transmission conditions. The WCS-999 is ideal for video camcorders - it captures the voices of family members on vacation, in sporting events, at recitals, birthdays and weddings. It is also ideal for Pressman portable audio recorders as it captures lectures and speeches, good for music and nature study. Supplied lavalier microphone is tiny and unobtrusive, clips onto shirt or tie. Built-in windscreen helps reduce the microphone's pickup of wind noise. Omni-directional microphone pattern picks up sound from all directions. Pocket-sized wireless transmitter is easy to hide, clips onto clothing for unobtrusive use. Wireless receiver plugs into camcorder or audio recorder mic input; easily clips onto clothing, camcorder hand strap or shoulder strap. Three transmission channels enable you to choose another channel if you encounter interference. Monitoring earphone lets you hear what's being recorded; plugs into wireless receiver. Mic mixing lets the camera operator and the subject both be recorded. 900 MHz wide FM transmission allows for outstanding sound quality, excellent frequency response (100 - 15, 000 Hz) and extended dynamic range (more than 78 dB). Switchable transmission channel lets you choose the channel with clear, noise-free sound.