LancardoRetractable Nurse Watch Clip On Pearl Flower Patterns Badge with Secondhand Stethoscope Lapel Fob Pocket Doctor Nurse for Women and Men

Not bad for what I paid. Fairly good quality in a silicone sleeve. Getting ready to buy another. It came with an extra battery, but I don't know what I did with it. I couldn't get the back of anyway. There's no slot to insert anything to pop it off.