Received a text message at 7:30AM from the husband. Wife lost her ring while dusting off snow from her pants leg. They looked for 2 days with many people helping her. She was very worried. T searched the area w here she thought it had gone. Nothing. Lots of people had tried to find it unsuccessfully. I used my standard CTX coil. Nothing. I switched to my smaller coil and went close to a car parked on the corner. BINGO! The car had blocked signal to my standard coil.