Shure P9HW Wired Bodypack Receiver for PSM900 Monitor SystemsThe P9HW is a wired, two channel stereo personal monitor with individual mix controls. Listen to one or two channels of audio from the mixing console through earphones using MixMode technology to customize the mono blend. Stereo mode allows left right balance adjustment for two mixes. Use the volume limiter to set the maximum volume adjustment range. P9HW is ideal for drummers and keyboard players who want the audio clarity and reduced feedback of in