BY-WM3T2 series is a mini 2.4 GHz wireless microphone system that provides high-quality sound for live streaming, vlogging, course recording, and other audio capturing app locations. With a Lightning output, the BY-WM3T2-D1 is designed for Apple iOS devices, and it comes with 1 transmitter and 1 receiver. BY-WM3T2 series is impossibly compact and lightweight, and it's easy to get started as long as you plug the receiver into the device. Because of its ultra-compact size and super lightweight, the transmitter won't tug at your collar when you clip it.