The BOYA BY-WM4 Pro K4 is a 2.4GHz dual channel wireless microphone system consisting of a compact dual channel receiver and two transmitters, which is ideal for two person vlog, dialog, interview, mobile journalism and much more.
Designed with a dual channel wireless receiver, it delivers two high-quality sound sources simultaneously to your iOS recording devices.
The receiver is pretty compact and lightweight that makes it more convenient to connect it to your iOS devices, such as iPhone, iPad and iPod Touch via an Apple MFI certified Lightning connector.
Featuring the 2.4GHz digital transmission technology, it provides you an operation range up to 60m (197ft) without obstacles, which is quite enough for most applications.
A line-in input jack on transmitter allows it to accept audio from other line-level devices. Plus there is a stereo/mono switch on receiver makes it delivers each channel separately or combine them, and a 3.5mm headphone output gives you the real-time monitoring experience.