Williams AV PFM PRO RCH Rechargeable Personal FM Listening System with Rechargeable BatteriesThe PFM PRO Rechargeable Personal FM Listening System with Rechargeable Batteries from Williams Sound delivers audio directly to the ear, enhancing sound at home, work, school, or anywhere background noise or distance from the source makes listening difficult. The system features 17 selectable channels on the 72 76 MHz band and has an operating range of up to 150 feet. A 3. 5mm jack allows for a variety of earphones and headphone options. The system