The Boya BY-WM4 Pro K2 is designed for videographers on a budget who want an easy to use and set-up 2-person lavalier wireless system that is versatile and capable. With included TRS and TRRS output cables it is ready out of the box to work with Cameras, Smartphones, Tablets, Computers and more. It's a compact and extraordinarily easy-to-use wireless microphone system for recording crisp and clear speech of 2 people for YouTube videos, interviews, vlogging and videography of a kinds. It includes 2x Omnidirectional lavaliers, which are ideal for capturing natural and dynamic voice recordings, while not restricting the movement of the subjects. This easy-to-use 2.4GHZ system automatically avoids interference and has a range of up to 50m (164') without obstacles. With no complicated menus or settings to worry about. Just turn it on and go. It also features a 3.5mm headphone output to monitor in real-time if your camera or device lacks a headphone output, to always ensure you're getting a great recording.