Williams Sound PFM PRO RCH Personal FM Listening System, 17 selectable channels 72-76 MHz, Operates up to 150&rsquo; (46 m), Improves listening for individuals or groups 17 selectable channels 72-76 MHz Auxiliary input - broadcast any audio source FM signal, compression, mute control Operates up to 150 (46 m) Includes: 1 PPA T46 transmitter, 1 PPA R37N receiver, 1 MIC 090 microphone, 1 EAR 041 mini earphone, 1 HED 021 headphone, 1 CCS 043 system carry case, 2 BAT 026-2 rechargeable batteries, 1 CHG 3502 charger and 1 WCA 087 audio cable