This Is a Boya by-M1dm Dual Omni-Directional Lavalier Microphone

Dual Mic Design: Features two lavalier microphones on a single cable, ideal for interviews and podcasts featuring two speakers. Wide Compatibility: Compatible with cameras, smartphones, camcorders, and audio recorders using a 3.5mm TRRS connector. Omnidirectional Pattern: Captures sound equally from all directions, providing flexible placement options. Versatile Power: Includes a LR44 battery for camera use and a switch to toggle between camera and smartphone modes.