RTS TR-800 RTS RadioCom Intercom Beltpack (E88 Band/A5F Connector)The RTS RadioCom TR 800 and TR 825 are 2 audio channel UHF frequency agile wireless beltpacks for use with the BTR 800. The TR 825 is a dual listen beltpack, allowing you to listen to tech in one ear and production in the other. Individual volume controls also allow for easy level adjustment. The TR 800 and the TR 825 both have an all metal cast magnesium case, an LCD based user interface, stage announce activation, WTA (Wireless Talk Around),