The Wireless Lavalier Microphone set from Septpenta includes 2 transmitters and 1 receiver, allowing for dual source recording for interviews and vlogs. The mic features noise reduction technology and a built-in rechargeable lithium battery with a long-lasting capacity. It is easy to use with automatic pairing and no need for an app. The 3.5mm connector is compatible with various devices like smartphones, cameras, and live sound cards, providing professional-level recording output. This microphone set is ideal for live webcasts, video blogging, interviews, and video teaching applications.