Build a complete security network with Rodann Electronics brand accessories. An additional speaker can be wired to either the RX1000A or RX2000A to provide notification in a separate room or location as an alternative to purchasing a second RX2000A.Features. Compatible with the Rodann Electronics RXTX1000A and RXTX2000A security systems. 1-Year Warranty. Made in the U.S.A.