Rode SmartLav+ w/ SC3 Adapter Bundlethis Rode SmartLav+ Lavalier Condenser Microphone Kit lets you pair your SmartLav+ with DSLR cameras, as well as other devices that only accept a TRS connection. The SmartLav sports a TRRS connection, which makes it compatible with most smartphones that still have 3. 5mm input jacks. However, many recording systems are not outfitted with TRRS jacksinstead, their 3. 5mm input is a TRS jack. It's one tiny, extra "R," but a headache of connectivity