Great! These relays have been 1 pole 2 ways, until recently... Now they come as I always asked for, 2-pole 2-ways!!!! You see if you are creating a remote-controlled patch-bay, you need 2 poles per audio-wire, to avoid grounding error. For small signals as well as speaker selectors. Now is that very possible with correct relays, and they are not sensitive for oxidization! Thank you Alibaba!!!!
good quality relays