Rolls PM55 Battery Powered Personal Monitor Amplifier - ProAudio.com
PwrON AC Adapter For Rolls Personal Monitor AMP+ PM55 Station PM351 AMP PM50s | eBay
AC Adapter for Rolls Personal Monitor AMP+ PM55 Station PM351 AMP PM50s DC Power Supply Charger Cord Cable, 5 Feet, with LED Indicator, Compatible Replacement - Walmart.com