Ear tag ear is tagged. Australian sheep and goats are required to have visually readable ear tags printed with a Property Identification Code (PIC). They are complemented by movement documents supplied by consignors that are used for identification and tracking. Very small ear tags are available for laboratory animals such as mice and rats. They are usually sold with a device that pierces the animal's ear and installs the tag at the same time. Lab animals can also be identified by other methods such as ear punching or marking (also used for livestock; see below), implanted RFID tags (mice are too small
Ear trumpet as both the first and last company of its kind. A Pinard horn is a type of stethoscope used by midwives that is designed similarly to an ear trumpet. It is a wooden cone about 8 inches long. The midwife presses the wide end of the horn against the pregnant woman's belly to monitor heart tones. Pinard horns were invented in France in the 19th century, and are still in use in many places worldwide. Ear trumpet Ear trumpets are tubular or funnel-shaped devices which collect sound waves and lead them into the ear. They were used as hearing aids,