need the communities top minds to help my complex situation

so I received a razer mamba tournament edition 2 Christmases ago, it turned out to be defective. upon that discovery, Razer sent me a replacement, but because the mamba tournament edition was discontinued, I couldn't get that as a replacement. so they sent me a Razer lancehead instead. the Razer lancehead now disconnects and reconnects out of the blue, bringing me to assume its the cord after some testing. could I still return my lancehead with a warranty or does the defective mamba I got not allow me to use it again. or is there a completely separate warranty with this new mouse because it is a separate model.