RMN5068A RMN5068 - Motorola Control Station Accessory, Desk Microphone, BlackRMN5068A RMN5068 Motorola Control Station Accessory, Desk Microphone, Black Black desktop microphone makes transmissions easy when the mobile radio is being used from a desktop because the microphone and push to talk button are larger. Microphone can help expedite transmissions because the user doesnt have to keep picking up the mobile microphone.