Features Suitable for youtube, vlogging, facebook, podcasts, mobile messaging phones and more 2.4GHz digital band Two-channel wireless receiver Mini-receiver Super clear recording sound Barrier-free operating range 60m 3.5mm headphone monitor jack Volume keys Stereo / mono switchover (Applicable to models: BY-WM4 PRO RXD / RXU) The omni-directional lavalier microphone BOYA BY-WM4 PRO is an economical, lightweight and simple microphone, specially designed for photography enthusiasts and photographers, BY- WM4 PRO is a new generation of 2.4GHz wireless microphone with two channels for reception in two bodies. It can be used in smartphones, tablets, SLR cameras, video cameras, computers and more. < p> BY-WM4 Pro-K6 Type-C dedicated one-to-two microphone system. Consisting of two bodypack transmitters (TX4 Pro) and a portable receiver (BY-WM4 PRO RXU) and accessories