This listing is for 1 Widex RC-Dex remote keep an eye on unit. (that is the brand new model with On/Off switch) To be had in either Black or Silver (please specify when purchasing). This may occasionally allow the user to show volume up & down. Works with such a lot more moderen Widex hearing aids. Buy is responsible to test for compatibility. Up to date, never used. Includes original box, instruction book and battery.