BOYA BY-WM4 PRO-K2 Two-Person Digital Camera-Mount Wireless Omni Lavalier Microphone System consists of one compact body-pack transmitter , a portable receiver, a Lavalier/lapel microphone, an omnidirectional lavalier microphone, a 3.5mm TRRS audio cable and a 3.5mm TRS audio cable, which provides immediate out-of-the-box operability for anyone, making it ideal for video, podcast, and mobile journalism applications.

The receiver is built with 3.5mm mic and 3.5mm headphone output jacks. The bodypack transmitter includes a MIC jack and LINE IN jack.