ReSound Normal Receiver R1 for right-ear receiver-in-canal (RIC) hearing aids. This is a Size 1 replacement receiver wire measuring 25.7mm in length, designed for ReSound hearing aid models sold through Costco Hearing Aid Centers. The R1 designation indicates a standard power receiver suitable for mild to moderate hearing loss. Receiver wires connect the behind-the-ear processor to the in-ear speaker and may need periodic replacement due to wear, moisture exposure, or wax buildup. Compatible with ReSound RIC-style hearing aids including models previously available at Costco such as the ReSound Preza and Vida lines.