Check the listing for details. BOYA Wireless Microphone Kit BY-WM4. Color: Black, Condition: Open box. Listed at 28.99 USD. This New Open box Kit has been tested and is fully functional. The kit is complete with all original materials including case, instructions, cables, microphone, clips, transmitter, receiver, camera mount and two microphone covers. The kit requires 2 AA batteries (not included) This BOYA Wireless Microphone Kit includes everything you need to record high-quality audio wirelessly. The lavalier/lapel microphone is designed with an omnidirectional polar pattern, making it perfect for recording in any direction. The wireless standard connectivity ensures that you can easily connect to your device and start recording. The black color of the microphone kit adds a sleek touch to your recording equipment. With the BOYA Wireless Microphone Kit, you can easily capture audio from a distance without worrying about cords or cables. This kit is perfect for photographers and videographers who need to capture high-quality audio for their projects.