BOYA-WM4 Pro-K1

  Dual-Channel Wireless Receiver.
• Compatible with smartphones, DSLR cameras consumer
  camcorders, PCs etc.
• Ideal for pod-casters, bloggers, live-streamers, YouTube
  creator, mobile journalism and more.
• Lightweight and compact for easy carrying.
• Super-clear recording sound.
• Omnidirectional lavalier microphone.
• Hard case, standard camera shoe mount and clip included.
• Up to 60m (197ft) operation range (without obstacle).
• Power supplied by two AAA batteries for transmitter

 and receiver.