FM41 is the ideal fitness mic for the single instructor - personal mic. With a waterproofed capsule and replaceable cable kit an instructor that teaches in multiple facilities can easily replace their cable/connector kit to match a different brand of transmitter - eliminating the need for multiple mics. We have also gone with our Multi Mic connector for T4 & T3 connectors. This allows any our mic to work with any T4 transmitter no matter how it is wired - same goes for T3’s - 3.5mm connector and HRS 4 pin wire/connector kits are also offered. Our warranty falls in line with the rest of our fitness rated microphones as well (rated up to 7 classes per week for 1 year against sweat death for a single instructor).