iProMOH-One Message and Music on Hold (MOH) USB Digital MP3, MP4, WAV, WMA, OGG, PCM, FLAC, AIFF Player, for Mitel, Toshiba, Panasonic, Avaya, NEC, Siemens, Unify, Nortel, Executone, Hitachi, Iwatsu PBX&rsquo;s with preloaded royalty free music, plug and play out of the box, auto play after power failure, triggered announcements, in store paging and announcements, includes Simple Audio Mixer (SAM) software for PC, voicemail, VoIP with local volume control (Model 41700)