Listen Technologies LR-42 4-Channel Infrared IR Stethoscope Receiver New LR42

Listen LR-42 is a Listen Technologies ListenRF Receiver and Battery

Listen Technologies LR42 IR Stethoscope 4-Channel Receiver – NEW

Listen 4xLR-44 - 4x LR-42 Receiver,8 Batteries,8-Slot Charging Base -AC Adapter

Listen LR-42 IR Stethoscope 4-Channel Receiver