A relay tower, also known as a relay beacon, was an electrically operated construction designed to obtain, strengthen, or rebroadcast a transmission or show across great expanses without a tangible link connecting individuals. On the Outer Rim world of Serenno, numerous instances of these mechanisms existed, employed by the compelling Sith Lord Count Dooku to send communications from his residence to his partners both present on and absent from the combat zone throughout the duration of the Clone Wars.