ATT Customer Service
I liked the product as soon as I got it but I couldn't understand how to attach it to the stethoscope.  I sent an email to ask, the asked me to send pictures of what I received and showed me how to put it on.  It was no fault of their own, I misunderstood from the product choices what I should have.  They were very quick to respond and very nice and helpful to me.  It was a pleasure to deal with them and will do it again next time I need this item.
Rating: 5 stars