What is the fine-grained topic of the following text: The PMEM Mics can be optioned with connectors compatible with the most popular brands of microphone systems including Shure (4 Pin XLR Jack Connectors), Sennheiser (1/8" Screw Lock (3.5mm) Jack Connectors) and standard 3.5mm jack connectors. Only return the topic.
PMEM Mics compatibility with various connectors